I wasn't aware GTA was a Valve game ;-)
I'm guessing the rest, being primarily multiplayer games, are blocked by some anti-cheat/DRM scheme. Hopefully Valve can work out some compromise to get those working on Wine/Proton.
I'm guessing the rest, being primarily multiplayer games, are blocked by some anti-cheat/DRM scheme. Hopefully Valve can work out some compromise to get those working on Wine/Proton.