NFS Most Wanted, the original, is fantastic, though it requires manual installation as it’s not on Steam.
Sadly the redux modpack version is just a bit too heavy as it includes a bunch of shaders and stuff you can’t disable. It runs, but you get maybe two hours. Vanilla barely taxes the deck.
It will make it look more fluid. It will feel like it’s running at a lower framerate, and at the framerates BG3 runs at on the Deck, around 25fps or 40ms per frame, the increase would be quite noticeable.