CP2077 is a great game! Runs really well on the deck. But so is the Witcher 3 which also runs really well on the deck! Personally cp2077 would be the one I pick.

If you have a little extra money and want to tinker a bit, you can install Decky and the plugins Power Tools, Decky LSFG-VK from decky and Lossless Scaling from the steam store. Decky LSFG-VK needs Lossless Scaling to work and I think it is around 5 bucks. With the above installed you can get around 100 fps in both cp2077, The Witcher 3 and many other games. I haven’t found a game that these plugins dont work on and increase performance and playability albeit at the cost of battery drain.

I hope you many happy hours of gaming on your new deck. I really love mine!