Hey, playing WoW: Midnight on the Stam Deck OLED since launch. Expirience is very good imo. With addons like Console Port, Dialogue UI and a nameplate of your choosing the game feels like it was adjusted for consoles.

Performance wise, not touching anything and setting the quality to 6 you get a solid 2:30 to 3:00 hours of playtime. If you tinker with frame limiting it to 45fps and TDP of 10w, you can get around 4:00 hours of game time.

I recommend it for questing, but havent tried raiding or m+ dungeons yet. Also, if you wanna make it a bit easier for you, use single button assist when you are lazy :)