YouTube creators HawkB shared the gameplay video of Red Dead Redemption 2 on Steam Deck. He tested the performance of the portable device with high graphics settings. It seems Steam Deck works great with RDR 2. The game showed about 45-55 FPS which is pretty decent performance for it. Some of the problematic and huge areas dropped it to 35-40 FPS. It should be mentioned that the game works in 720p resolution.