Right now is a rocky time, but there’s a lot of hope out there that the Steam Deck will provide a common baseline for an HDR screen that developers can optimize for, something that has never existed before for HDR.
I have 1 primary recommendation, which is to never set your display brightness above 75%. Your highlights will start clipping and you will lose detail.
If a game’s HDR implementation is good (unforunetly this is not the case most of the time) you will be able to turn on HDR and go. Steam Deck’s OLED display is very similar to the most popular gaming OLED TV’s and monitors that are out there today, and even if it’s not absolutely perfect settings, it could be close.
I’ll give you a headstart on BG3. Set Brightness to 150, which calibrates the display to 1000 nits peak. I set contrast to 1.10, but raise it to 1.15 or 1.2 if you love a super contrasy look.
I’m going to be real salty if it turns out that only the BOE panel on the LE deck is the one that can do 120hz, which of course sold out officially this morning…