I would reinstall the rpm fusion ones and remove the ones from the official site, also check if maybe there is a flatpak update for steam if you have it. Also blacklist your nouveau driver in the grep config file, it could be that its using that.

If you want to check if its working use glx-gears with the info flag and set the opengl to the nvidia card. It could be that it doesnt work, its been a long time since my driver broke.

Kde is looking mighty good to try now, ive been kind of bored from gnome recently

As far as i know, windows 10 is still more functional, less of a resource hog (in windows terms), far FAR less telemetry and it just looks fucking nicer. It costs nothing to not upgrade, or you pay the tribute and join the linux brotherhood