HAIL GAMER! If you are in desperate need of more frames or graphical fidelity, this might be REALLY handy. It's called Lossless Scaling and it's available on Steam, and now available as a plugin for the Decky addon for the SteamDeck. Here's a short guide on how to get it rocking. This guide is specifically for ARC Raiders.

note: DeckWizard on YT has the goods!