Outlast Trials developer confirms their Easy Anti-Cheat integration releasing tomorrow has been tested on Steam Deck and is working through Proton

Cheers, love that this a thing now.

Easy Anti-Cheat will be introduced starting October 21st with this update in order to combat potential hacking or cheats in our game, especially given the new Invasion Experimental Therapy. We want to ensure a fair competitive environment for all our players.