zlacker

You can install the normal steam client on Arch Linux, and the "big picture mode" (or whatever they call it now) is basically the "SteamOS" mode

>>assbut+(OP)
I'm using EndeavorOS (which is friendly Arch for newbies), and Steam is just an application that launches Steam games and it works great.

There are a couple of other game launchers, like Heroic, which handles both Epic and GOG games, which also works great.

But what's even better, is that if a GOG game doesn't quite run perfectly on Heroic because it lacks some of the latest refinements from Proton, you can import that game into Steam and taie advantage of Valve's nice work on Proton anyway.

I might do that; Cyberpunk on Heroic doesn't support raytracing or DLSS, and as I understand it, those do work if I were to run it on Steam. So that's a very nice option to have.