"Linux" is really a family of operating systems, so people need to be more specific. It might run perfectly out of the box on consumer/gamer focused operating systems like Bazzite or SteamOS while perhaps requiring more work on something like Red Hat or NixOS. Those different operating systems all have wildly different approaches to how the OS actually works despite generally being able to run a largely overlapping set of programs.

It's like saying something works on "laptop" without specifying whether it's a Thinkpad or a Chromebook or a Macbook.

I can't comment generally but I use NixOS and have had no issues playing games on Steam. The setup was laughably simple, just `programs.steam.enable = true;` and Steam handles compatibility so well that I buy games without thinking "will this run".

Actually there was one thing I couldn't do but this isn't unique to NixOS. I tried to install a GTAV mod that allows you to ride your smart bike trainer in game: GTBikeV. The mod can be installed, but the Bluetooth doesn't work. This is a WINE limitation.