diff --git a/src/libraries/System.Diagnostics.Debug/tests/System.Diagnostics.Debug.Tests.csproj b/src/libraries/System.Diagnostics.Debug/tests/System.Diagnostics.Debug.Tests.csproj
index e842a465e60cdc57f991c15ddccb46fc1d9457ad..b08220b972ae8fdfecb861c29c907dfd605d9d53 100644
--- a/src/libraries/System.Diagnostics.Debug/tests/System.Diagnostics.Debug.Tests.csproj
+++ b/src/libraries/System.Diagnostics.Debug/tests/System.Diagnostics.Debug.Tests.csproj
@@ -9,8 +9,10 @@
   <ItemGroup>
     <DefaultReferenceExclusion Include="System.Diagnostics.Debug" />
     <DefaultReferenceExclusion Include="System.Runtime.Extensions" />
+    <DefaultReferenceExclusion Include="System.Collections" />
     <ProjectReference Include="$(CoreLibProject)" />
     <ProjectReference Include="$(LibrariesProjectRoot)System.Runtime\src\System.Runtime.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Collections\src\System.Collections.csproj" />
     <ProjectReference Include="$(LibrariesProjectRoot)System.Threading\src\System.Threading.csproj" SkipUseReferenceAssembly="true" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/tests/System.Diagnostics.FileVersionInfo.Tests/System.Diagnostics.FileVersionInfo.Tests.csproj b/src/libraries/System.Diagnostics.FileVersionInfo/tests/System.Diagnostics.FileVersionInfo.Tests/System.Diagnostics.FileVersionInfo.Tests.csproj
index 4eb560a67984826d830054ada79f62e11543c74b..d052ccaa0b68685fc87b8f7d0b2d59289462157d 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/tests/System.Diagnostics.FileVersionInfo.Tests/System.Diagnostics.FileVersionInfo.Tests.csproj
+++ b/src/libraries/System.Diagnostics.FileVersionInfo/tests/System.Diagnostics.FileVersionInfo.Tests/System.Diagnostics.FileVersionInfo.Tests.csproj
@@ -40,6 +40,13 @@
     <Compile Include="FileVersionInfoTest.Unix.cs" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\System.Diagnostics.FileVersionInfo.TestAssembly\System.Diagnostics.FileVersionInfo.TestAssembly.csproj" />
+    <!-- Include the test assembly as Content. We don't do this on Browser to work around
+         https://github.com/dotnet/runtime/issues/46856 that would proceed to treat Content as an assembly reference anyway.
+         Works around: Found identical vfs mappings for target path: System.Diagnostics.FileVersionInfo.TestAssembly.dll, source file: .../System.Diagnostics.FileVersionInfo.TestAssembly.dll. Ignoring. -->
+    <ProjectReference Include="..\System.Diagnostics.FileVersionInfo.TestAssembly\System.Diagnostics.FileVersionInfo.TestAssembly.csproj" Condition="'$(TargetOS)' != 'Browser'">
+      <OutputItemType>Content</OutputItemType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </ProjectReference>
+    <ProjectReference Include="..\System.Diagnostics.FileVersionInfo.TestAssembly\System.Diagnostics.FileVersionInfo.TestAssembly.csproj" Condition="'$(TargetOS)' == 'Browser'" />
   </ItemGroup>
 </Project>
diff --git a/src/libraries/tests.proj b/src/libraries/tests.proj
index 0ebc23f231a8db77dca6e6fd6865bc949bc7dbcb..340116853154ce6db05dc4c7c6e019a42aef0005 100644
--- a/src/libraries/tests.proj
+++ b/src/libraries/tests.proj
@@ -401,12 +401,33 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TestNativeAot)' == 'true' and '$(RunDisabledNativeAotTests)' != 'true'">
-    <!--These tests are not interesting for NativeAot -->
+
+    <!-- Most of these need tagging as "requires Ref.Emit". Not much interesting things left to run. Low priority. -->
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Reflection.Emit.Lightweight\tests\System.Reflection.Emit.Lightweight.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Reflection.Emit.ILGeneration\tests\System.Reflection.Emit.ILGeneration.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Reflection.Emit\tests\System.Reflection.Emit.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.Loader\tests\System.Runtime.Loader.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Reflection.DispatchProxy\tests\System.Reflection.DispatchProxy.Tests.csproj" />
+
+    <!-- Not compatible with trimming in general. Low priority -->
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.CSharp\tests\Microsoft.CSharp.Tests.csproj" />
+
+    <!-- Source generators tests. Not testing customer scenarios. Low priority -->
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.Extensions.Logging.Abstractions\tests\Microsoft.Extensions.Logging.Generators.Tests\Microsoft.Extensions.Logging.Generators.Roslyn3.11.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.Extensions.Logging.Abstractions\tests\Microsoft.Extensions.Logging.Generators.Tests\Microsoft.Extensions.Logging.Generators.Roslyn4.0.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices\tests\LibraryImportGenerator.UnitTests\LibraryImportGenerator.Unit.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.SourceGeneration.Unit.Tests\System.Text.Json.SourceGeneration.Roslyn3.11.Unit.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.SourceGeneration.Unit.Tests\System.Text.Json.SourceGeneration.Roslyn4.0.Unit.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.RegularExpressions\tests\FunctionalTests\System.Text.RegularExpressions.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices.JavaScript\tests\JSImportGenerator.UnitTest\JSImportGenerator.Unit.Tests.csproj" />
+
+    <!-- Depends on DNNE. Not particularly interesting because it tests marshalling-less p/invoke only. Low priority -->
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices\tests\LibraryImportGenerator.Tests\LibraryImportGenerator.Tests.csproj" />
+
+    <!-- Many test failures due to trimming and MakeGeneric. XmlSerializer is not currently supported with NativeAOT. Low priority -->
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.XmlSerializer.Generator\tests\Microsoft.XmlSerializer.Generator.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\XmlSerializer\System.Xml.XmlSerializer.Tests.csproj" />
+
     <!--This test fails on Windows.10.Amd64.Server2022 -->
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.IO.FileSystem\tests\System.IO.FileSystem.Tests.csproj" />
     <!--Needs work to get these tests to pass -->
@@ -426,6 +447,23 @@
                       Condition="'$(TargetOS)' == 'linux'" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Threading.Tasks.Dataflow\tests\System.Threading.Tasks.Dataflow.Tests.csproj"
                       Condition="'$(TargetOS)' == 'linux'" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.NameResolution\tests\FunctionalTests\System.Net.NameResolution.Functional.Tests.csproj"
+                      Condition="'$(TargetOS)' == 'windows'"/>
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Linq\tests\System.Linq.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Memory.Data\tests\System.Memory.Data.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Http.Json\tests\FunctionalTests\System.Net.Http.Json.Functional.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Mail\tests\Functional\System.Net.Mail.Functional.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.NetworkInformation\tests\FunctionalTests\System.Net.NetworkInformation.Functional.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Sockets\tests\FunctionalTests\System.Net.Sockets.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices\tests\System.Runtime.InteropServices.UnitTests\System.Runtime.InteropServices.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.Intrinsics\tests\System.Runtime.Intrinsics.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Linq.Parallel\tests\System.Linq.Parallel.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.SourceGeneration.Tests\System.Text.Json.SourceGeneration.Roslyn3.11.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.SourceGeneration.Tests\System.Text.Json.SourceGeneration.Roslyn4.0.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.Tests\System.Text.Json.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Threading.Thread\tests\System.Threading.Thread.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Http\tests\FunctionalTests\System.Net.Http.Functional.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Diagnostics.PerformanceCounter\tests\System.Diagnostics.PerformanceCounter.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Security.Cryptography.Xml\tests\System.Security.Cryptography.Xml.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.Extensions.Logging.EventSource\tests\Microsoft.Extensions.Logging.EventSource.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Collections.Concurrent\tests\System.Collections.Concurrent.Tests.csproj" />
@@ -523,53 +561,7 @@
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime\tests\System\Reflection\InvokeEmit\System.Runtime.ReflectionInvokeEmit.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime\tests\System\Reflection\InvokeInterpreted\System.Runtime.ReflectionInvokeInterpreted.Tests.csproj" />
     <!--These tests don't build-->
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.CSharp\tests\Microsoft.CSharp.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.Diagnostics.Tracing.EventSource.Redist\tests\Microsoft.Diagnostics.Tracing.EventSource.Redist.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.Extensions.DependencyInjection.Specification.Tests\src\Microsoft.Extensions.DependencyInjection.Specification.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.Extensions.Logging.Abstractions\tests\Microsoft.Extensions.Logging.Generators.Tests\Microsoft.Extensions.Logging.Generators.Roslyn3.11.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.Extensions.Logging.Abstractions\tests\Microsoft.Extensions.Logging.Generators.Tests\Microsoft.Extensions.Logging.Generators.Roslyn4.0.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.XmlSerializer.Generator\tests\Microsoft.XmlSerializer.Generator.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Diagnostics.Debug\tests\System.Diagnostics.Debug.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Diagnostics.FileVersionInfo\tests\System.Diagnostics.FileVersionInfo.Tests\System.Diagnostics.FileVersionInfo.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Diagnostics.PerformanceCounter\tests\System.Diagnostics.PerformanceCounter.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Linq\tests\System.Linq.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Memory.Data\tests\System.Memory.Data.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Http\tests\EnterpriseTests\System.Net.Http.Enterprise.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Http\tests\FunctionalTests\System.Net.Http.Functional.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Http.Json\tests\FunctionalTests\System.Net.Http.Json.Functional.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Mail\tests\Functional\System.Net.Mail.Functional.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.NameResolution\tests\FunctionalTests\System.Net.NameResolution.Functional.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.NetworkInformation\tests\FunctionalTests\System.Net.NetworkInformation.Functional.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Ping\tests\FunctionalTests\System.Net.Ping.Functional.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Primitives\tests\FunctionalTests\System.Net.Primitives.Functional.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Quic\tests\FunctionalTests\System.Net.Quic.Functional.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Security\tests\EnterpriseTests\System.Net.Security.Enterprise.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Security\tests\FunctionalTests\System.Net.Security.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.Sockets\tests\FunctionalTests\System.Net.Sockets.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Uri\tests\ExtendedFunctionalTests\System.Private.Uri.ExtendedFunctional.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\Misc\System.Xml.Misc.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\XmlDocument\System.Xml.XmlDocument.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\XmlSerializer\System.Xml.XmlSerializer.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\XPath\XmlDocument\System.Xml.XPath.XmlDocument.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\XPath\XPathDocument\System.Xml.XPath.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml.Linq\tests\axes\System.Xml.Linq.Axes.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml.Linq\tests\XPath\XDocument\System.Xml.XPath.XDocument.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Reflection.MetadataLoadContext\tests\System.Reflection.MetadataLoadContext.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices\tests\LibraryImportGenerator.Tests\LibraryImportGenerator.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices\tests\LibraryImportGenerator.UnitTests\LibraryImportGenerator.Unit.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices\tests\System.Runtime.InteropServices.UnitTests\System.Runtime.InteropServices.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices.JavaScript\tests\JSImportGenerator.UnitTest\JSImportGenerator.Unit.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.Intrinsics\tests\System.Runtime.Intrinsics.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Security.Cryptography.OpenSsl\tests\System.Security.Cryptography.OpenSsl.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.SourceGeneration.Tests\System.Text.Json.SourceGeneration.Roslyn3.11.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.SourceGeneration.Tests\System.Text.Json.SourceGeneration.Roslyn4.0.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.SourceGeneration.Unit.Tests\System.Text.Json.SourceGeneration.Roslyn3.11.Unit.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.SourceGeneration.Unit.Tests\System.Text.Json.SourceGeneration.Roslyn4.0.Unit.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.Json\tests\System.Text.Json.Tests\System.Text.Json.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.RegularExpressions\tests\FunctionalTests\System.Text.RegularExpressions.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Text.RegularExpressions\tests\UnitTests\System.Text.RegularExpressions.Unit.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Linq.Parallel\tests\System.Linq.Parallel.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Threading.Thread\tests\System.Threading.Thread.Tests.csproj" />
   </ItemGroup>
 
   <ItemGroup>