I'm on NixOS which of course uses nix. I'm able to run steam games and have had no issues at all. Im using Lutris as the launcher, but you could easily use the

I'm on NixOS which of course uses nix. I'm able to run steam games and have had no issues at all. Im using Lutris as the launcher, but you could easily use the official steam launcher (programs.steam.enable = true). So you could technically get yourself a full gaming experience just with nix, without relying on the shipped steam client in SteamOS.