If you have DeckHD (the Steam Deck Display Mod), it is now officially supported.

This reminds me, I wonder if there's anyone that sells OLED screen upgrades for the original Deck? I think it just makes sense since if you can upgrade the Deck's screen to a higher resolution one, why not upgrade to an OLED screen to have way better colour contrast and possibly battery life improvements?

I know some people might ask me "why not just buy a Steam Deck OLED?", well, I’m just really cheap and I'd rather upgrade something that I already have instead of buying a completely new device