Same, I know installing from other launchers on linux is possible using lutris, but since the steam experience is so smooth, I’ve never bothered to figure out how.

What do you mean? Explicitly having to set if= and of= is way harder to screw up than mixing up the order of arguments for e.g. cp.

No, see: some of us spend countless hours setting up their NixOS config repo, which is totally worth it because you save half an hour when moving to a new machine