Merge pull request #11838 from unoplatform/Youssef1313/primary-language-override

fix: Change UseLegacyPrimaryLanguageOverride default value to true

src/Uno.UWP/WinRTFeatureConfiguration.cs

@@ -18,11 +18,11 @@ namespace Uno
 		public static class ApplicationLanguages
 		{
 			/// <summary>
-			/// <see cref="Windows.Globalization.ApplicationLanguages.PrimaryLanguageOverride"/> used to take effect (by changing current culture) during its setter.
-			/// On Windows, changing this property only takes effect after restarting the application. We changed the default behavior as a breaking change to match Windows.
-			/// Set this property to true to get the old behavior.
+			/// <see cref="Windows.Globalization.ApplicationLanguages.PrimaryLanguageOverride"/> takes effect (by changing current culture) during its setter execution.
+			/// On Windows, changing this property *may* take effect only after restarting the application.
+			/// Set this property to false to require an app restart for the change to take effect. The default of the property is true.
 			/// </summary>
-			public static bool UseLegacyPrimaryLanguageOverride { get; set; }
+			public static bool UseLegacyPrimaryLanguageOverride { get; set; } = true;
 		}
 	}
 }