Arc Raiders is a PvPvE game, like most extraction shooters.

Still has an anti-cheat, they just bothered to allow Linux support.

Companies don't do this out of laziness/incompetence, but even some large anti-cheats work on Linux and some games simply choose to not enable it (cough, Tarkov, cough). Their problem, I'm no longer gonna play games that don't work on Linux.

Funnily enough the best FPS game ever (Counter-Strike) runs absolutely fine on Linux. Thanks Valve!