OpenGL Window example incorrectly renders with a transparent background under Wayland

Running the OpenGL Window example under Fedora 37 with Gnome 43 Wayland, results in the triangle being incorrectly rendered with a transparent background. The example also fails to clear the background each frame resulting in successively drawn triangles in the rotating animation being overlapped.

The same example under Qt 5.15 runs fine unless it is forced to run under Wayland (e.g. using QT_QPA_PLATFORM=wayland).

My screen capturing software wasn't able to detect the incorrectly rendered window, but I've attached a picture of the issue.