I haven't had any problems with gaming in Wayland. Perhaps you haven't configured it properly, especially if it wasn't default installed on your system.
I've so far had good experience on stock Opera, and Vivaldi.
Opera GX gave me problems where the browser interface would be layed over the app interface rather than just being hidden. Took up 30% of my screen real-estate for address bar and new tab buttons.
I'd be using Wayland unless you have some good reason not to. You will not get good performance out of xorg with multiple monitors. Vsync on Wayland will match your screens refresh rate. The experience is a lot better imo.
I understand that, the problem is that the behavior is different after reinstalling the PWA.
This could be because I used a different browser. I used Opera this time instead of Vivaldi which I had used last time. It's just that elements that should be hidden are visible, like the address bar.
At leady that's the experience I had with Vivaldi.
Oh, I see it now. My brain must have seen the one chat bubble and ignored all others. Surely that would make more sense to be a bell icon or something.
Then don't reply