I finally gave up my Nvidia 2070 Super and rejoined Team red with a 9070 XT. And it’s like this is the way everything was always meant to be.
HDR works without breaking font rendering. Sleep states just work. No more random border flickering in fullscreen or borderless windows. And the fans never even spin up.
I did have to unwind a couple Nvidia workarounds to swap over successfully (like /etc/environment needed cleaning up for sddm-greeter-qt to not core dump).
No ragrets.
No regerts.
Team red 4lyfe (again).
Yes, Shark03 said it best. Proton is built in to Steam, so as long as the Linux distro you choose (Mint, Ubuntu, CachyOS, etc.) can run Steam, Proton will work. I’ll also mention ProtonDB.com here; you can use that site to search for a game to see how much tinkering (if any) you’ll need to do to make your games work. For my game library, I think almost every game runs with no tinkering, maybe selecting a specific Proton version at most (a drop-down menu).