I can’t see it happening until valve adds some kind of trusted compute environment. I’m imagining online games could have a flag which enforces secure boot, boot chain attestation, and disables multi tasking features. So while you are playing the game it becomes a single task device, but after you quit it’s fully unlocked again to do whatever you want.
This is the main problem why anti cheats are currenty blocking SteamOS.
I don't think you'd need to block multi tasking though, but the kernel would need to prevent or tamper root access so it couldn't modify the game memory.
You can't block multitasking, the largest multiplayers have huge crowds who play with friends and talk on discord.
It isn't about blocking anything, remote attestation confirms the system is in a particular configuration, but it doesn't actually block you from doing anything you want. The "locked down" part just means that running any unapproved programs or system configurations would lock you out of the game. So as long as the game servers recognized discord as an approved program you could run it while connected to game servers.
Yeah, playing an audio book in the background while I game is my default mode of play now.
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