• Parking Garage Rally Circuit is pretty fun and runs well.
• V-Rally 4 is pretty smooth as well if you turn down settings a little bit. I love that it has a unique hill climb road in eastern Europe that Top Gear or Grand Tour covered. I don’t remember the name.
• Truck Racer is a fun ps3-era arcade style game.

I have yet to play them on Steam Deck, hut I’ve played these on other consoles and loved them:

• WRC 4
• FIA European Truck Racing Championship
• Wreckfest