Technically, yes. WINE/Proton aren’t sandboxed so it would be possible to pull some information at least. I’ve heard people install the flatpak version of Steam to isolate network calls using flatseal, so that’s one workaround potentially.
NOTE: I’m just talking about generic data collection. The DRM/anti-cheat stuff could flag you as using Linux and then the game just refuses to run. I know the new ToS talked about banning VMs so maybe they lump linux users into that (at least for online play).
But can they if you are using Linux to run it?
Technically, yes. WINE/Proton aren’t sandboxed so it would be possible to pull some information at least. I’ve heard people install the flatpak version of Steam to isolate network calls using flatseal, so that’s one workaround potentially.
NOTE: I’m just talking about generic data collection. The DRM/anti-cheat stuff could flag you as using Linux and then the game just refuses to run. I know the new ToS talked about banning VMs so maybe they lump linux users into that (at least for online play).