Valve are working on what they can from the OS side, but fundamentally there’s no silver bullet and it’s up to game devs to implement anti-cheat in a way that works for SteamOS if they want games that require anti cheat to work.

My personal interpretation is that we remain in the same situation as ever, and games which have invasive anticheat will continue to not work on Linux unless the game developers make them work - and publishers won’t do that until Linux as a gaming platform has sufficient market share that they would lose a large chunk of money by not supporting it.