Gnome has been pretty great on Wayland for a while.
Personally I've been using it since 2017, and besides a stint with a 1080 Ti that was constantly causing issues, it's been pretty good besides screen sharing in some programs. Speaking of...
I just wish Discord would fix their shitty app or people would abandon that shitty app. Unfortunately neither looks likely.
Right, actually you can use Discord natively on Wayland just passing the flags mentioned in the post. The only issue I have found with the official Discord client is that it doesn't support streaming audio alongside to streaming your screen, but vesktop does the trick for that.
From my experience, it seems like the video quality really sucks the moment you try to stream anything more complex, like a 3D game - no indication on my side, but a friend complained and I got the same result checking the stream on a second device. Frame rate drops to 2fps or worse, with bad quality on each frame.
I remember reading an issue on vesktop about it, but sounds like it might just come down to missing HW acceleration in electron for the relevant APIs? Though if you have any suggestions and/or better results, I'd love to hear about it.
You might just need to use a lower resolution or fps. Vesktop lets you stream at discord nitro quality, but there's still a bitrate limit. I tend to use 720p 60fps and it works well