I’m on KDE Plasma with Nvidia and Wayland with the proprietary 530 drivers but really the experience (due to Nvidia’s own fault) doesn’t feel polished at all although it’s very smooth, but the fact of having to be constantly switching between Xorg and Wayland because one or another program doesn’t behave the way it should in Wayland (frameskipping, blank screen, tearing) and I was thinking if using the open source drivers could fix something or make it worse.
I remember testing the open source drivers some time ago and running the Terraria compilation for Linux was not working well at all, and that being a native Linux compilation, maybe the Proton version would have worked better.
The only workable discreet GPUs with open source drivers that work right now are on Team Red (AMD) edit: and Intel.
There are good people working on Nvidia foss drivers but they have a long way to go.
Team Blue is viable as well, not as good as AMD’s yet but they’re getting there. I’ve been using an Intel Arc A770 on Linux for 6 months, it’s been pretty solid and Intel also has open source drivers.