Very interesting... I wonder if it's a Windows 11 specific issue. I can't seem to repro it on my Windows 10 machine, unfortunately.
Does it also happen when you play in the browser?
The GIF is very useful! I analyzed it frame by frame and I can see the "start" screen go up and then down in the back. I have a potential suspect for this issue but I'm not 100% sure since I can't repro locally.
Thank you very much for the detailed report!