IDK, I've been on Wayland (via Sway) for about 5 years now, there were a few annoyances in the first few years but now I can't remember when was the last Wayland related thing that I needed to fix.
I have personally a bug when sway does not return from sleep mode, sometimes randomly, and I have to physically power off the pc. It just shows black screen with backlight on.
I guess the issue is on AMD drivers, but it is likely that it will never be fixed. I have no idea how driver bug can cause this on Wayland but not be an issue elsewhere.
https://mastransky.wordpress.com/2020/06/03/firefox-on-fedor...
Also, enabled by default with Mesa in these days
https://linuxstoney.com/firefox-has-hardware-video-accelerat...
Wayland is a wip (a number of things are being worked on right now that have never even been fathomed for x11) and it's already a significantly better experience in countless ways over x11.