EDIT: We have at least one user claiming that EAC and BattlEye can NOT see what programs are running on your computer via proton on Linux.
EDIT 2: According to brucethemoose@lemmy.world with comment https://lemmy.world/comment/24738141
"Yes and no.
If you run task manager or something in Proton? It just shows Proton processes:
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But all linux process, and tons of information about them, are readable in the /proc directory. They’re just files, accessible to the program.
Try ls /proc yourself.
There’s nothing stopping anti cheat from checking that, if it’s configured to do it.
Which is pretty dang convincing to me.
If I have a good understanding, the Symlinks that Proton uses allow the games to view nearly your entire drive and see what software is running? Because Proton is explicitly NOT a virtual machine and merely a translation layer for Windows applications to run on Linux?
The reason I like to ask is because this is the general consensus, that Proton applications are not secure, but when searching online it doesn't explicitly state anywhere if the games with EAC or BattlEye are capable of spying on Linux users. So I'm looking for confirmation on this.
From what I've seen the best way to do it is to isolate steam and its installed gamss on a drive and then use something like firejail. I haven't gotten around to trying it yet but once I do I'll post about it in this community.