22136 Fix warning when no entrypoint args provided. (affects: desktop, cla: yes, needs tests, platform-linux)

22268 Fix Linux handling of window exposure events (affects: desktop, cla: yes, needs tests, platform-linux)

22412 Add D3D9 fallback path for ANGLE and ensure fallbacks are actually attempted (affects: desktop, cla: yes, needs tests, platform-windows, waiting for tree to go green)

22457 [macOS] Disable synchronous resizing until a frame is produced (affects: desktop, cla: yes, needs tests, platform-macos)

22569 [macOS] Isolate openGL rendering to FlutterOpenGLRenderer (affects: desktop, cla: yes, needs tests, platform-macos, waiting for tree to go green)