fixes #89688

src/vs/workbench/browser/layout.ts

@@ -1180,6 +1180,7 @@ export abstract class Layout extends Disposable implements IWorkbenchLayoutServi
 		} else {
 			this.setEditorHidden(false);
 			this.workbenchGrid.resizeView(this.panelPartView, { width: this.state.panel.position === Position.BOTTOM ? size.width : this.state.panel.lastNonMaximizedWidth, height: this.state.panel.position === Position.BOTTOM ? this.state.panel.lastNonMaximizedHeight : size.height });
+			this.editorGroupService.activeGroup.focus();
 		}
 	}