diff --git a/UI/Qt/WebContentView.cpp b/UI/Qt/WebContentView.cpp
index e00d46fb45..961103c7cd 100644
--- a/UI/Qt/WebContentView.cpp
+++ b/UI/Qt/WebContentView.cpp
@@ -53,10 +53,25 @@ namespace Ladybird {
 
 bool is_using_dark_system_theme(QWidget&);
 
-WebContentView::WebContentView(QWidget* window, RefPtr<WebView::WebContentClient> parent_client, size_t page_index, WebContentViewInitialState initial_state)
-    : WebContentViewBase(window)
+static QWidget* initial_web_content_view_parent([[maybe_unused]] QWidget* window)
 {
 #ifdef AK_OS_MACOS
+    return nullptr;
+#else
+    return window;
+#endif
+}
+
+WebContentView::WebContentView(QWidget* window, RefPtr<WebView::WebContentClient> parent_client, size_t page_index, WebContentViewInitialState initial_state)
+    : WebContentViewBase(initial_web_content_view_parent(window))
+{
+#ifdef AK_OS_MACOS
+    // Keep the QRhiWidget out of the top-level QWidget backing store. If it is
+    // parented before becoming native, Qt propagates its RHI config to the whole
+    // browser window and uploads the full backing store texture on chrome repaints.
+    setAttribute(Qt::WA_DontCreateNativeAncestors);
+    setAttribute(Qt::WA_NativeWindow);
+    setParent(window);
     setApi(QRhiWidget::Api::Metal);
 #endif
 
diff --git a/UI/Qt/main.cpp b/UI/Qt/main.cpp
index 9c3e01d0b4..316009ce9c 100644
--- a/UI/Qt/main.cpp
+++ b/UI/Qt/main.cpp
@@ -13,6 +13,7 @@
 #include <UI/Qt/BrowserWindow.h>
 #include <UI/Qt/Settings.h>
 
+#include <QCoreApplication>
 #include <QtGlobal>
 
 #if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
@@ -46,10 +47,9 @@ ErrorOr<int> ladybird_main(Main::Arguments arguments)
     AK::set_rich_debug_enabled(true);
 
 #ifdef AK_OS_MACOS
-    if (!qEnvironmentVariableIsSet("QT_WIDGETS_RHI"))
-        qputenv("QT_WIDGETS_RHI", "1");
-    if (!qEnvironmentVariableIsSet("QT_WIDGETS_RHI_BACKEND"))
-        qputenv("QT_WIDGETS_RHI_BACKEND", "metal");
+    // The web content view is a native QRhiWidget child. Keep it from forcing
+    // every sibling in the tab UI to become native as well.
+    QCoreApplication::setAttribute(Qt::AA_DontCreateNativeWidgetSiblings);
 #endif
 
     auto app = TRY(Ladybird::Application::create(arguments));