Have you tried Bazzite? It’s basically a drop-in replacement. It’s based on Fedora’s Atomic stuff instead of Arch, but if it wasn’t for the logo at the start, I’d be hard pressed to notice I was using it and not vanilla SteamOS.

I did try using Bazzite but I had weird issues with stuttering/throttling on the RX 7600 which made most games totally unplayable (I confirmed the same hardware worked fine on a windows install). That was a while ago though, it's probably worth me trying again.

Normally I just use regular Fedora/Arch/OpenSUSE for gaming on Linux and never see any issues (albeit that's on a 6800xt at the moment) but I want that consolized experience.

edit: found the thread where I discussed fixing this - few bits of false hope and then I eventually gave up. https://www.answeroverflow.com/m/1314736793190662216