"ELDEN RING DLC Faces Issues on Steam Deck and Linux"
TL;DR
The new ELDEN RING Shadow of the Erdtree DLC update is causing issues on Steam Deck and Linux, including broken online play due to Easy Anti-Cheat problems and game-breaking idle issues on Steam Deck. A hotfix is being worked on for the Steam Deck issue, but no acknowledgment yet for the anti-cheat problem.
Want the full story? Read the original reporting
Read on GamingOnLinux