Same. I mainline Destiny2 (well, a bit less these days), and Bungie won't support Linux/Steam Deck because they depend on BattlEye kernel anti-cheat.

(and yet still have a problem with cheaters, see all the bans following the Desert Perpetual raid race)

BattleEye is supported on Linux and Steam Deck, Bungie simply decided not to enable support for it. https://areweanticheatyet.com/?search=battleye&sortOrder=&so...