AreWeAntiCheatYet VS holoiso

I only really play single player, but I have run into this too. This is a great resource to keep track of progress - https://areweanticheatyet.com/

It varies by game. https://areweanticheatyet.com/ is an interesting resource for that because they also track announcements by developers about whether or not linux support is eventually planned.

AFAIK the games that don't work are more modern, competetive games that use Anticheat. https://areweanticheatyet.com/ is a good resource to see the status of your game.

It is game by game basis. Use this guide to see if the game you play is supported or not.

The only caveat to that is online games with anti-cheat. EAC and BattlEye both support Linux but requires studios to tick a box, many of which refuse. Any kernel-layer AC that doesn't have a userspace component will not run on Linux. Can see a list of games and their AC support here.

> except Multiplayer online games

That's no longer the case. I'd say about now, there are more multiplayer games that you can play, as opposed to ones you can't play.

See: https://areweanticheatyet.com/ as reference, but it's not very up-to-date, so https://www.protondb.com/ would probably be a better reference.

Only listed the 'bigger' ones, but you have a rather full list here if you want to check your favorite games: arwianticheatyet.com

Source: AreWeAntiCheatYet

Nope, just works. There are some games that use invasive kernel-level anticheat that wont work as Linux sensibly blocks anything that shouldn't be messing with the kernel, but I'm not personally interested in those games anyway. EAC and Battleye both support Linux, but requires devs to tick a box, which there's several that can't be bothered.

exclusive to the deck for now, unofficial ports exist, and official support is coming soontm

HoloISO: https://github.com/theVakhovskeIsTaken/holoiso

if you haven't seen it yet, some dedicated members of the community already made a working desktop iso (amd only obviously)

I don't recommend installing SteamOS because it may not have the drivers, I'd recommend HoloISO if you want something more akin to SteamOS, or just use the new Big Picture mode.