If you want to stream games from your PC to the Steam Deck using RemotePlay, you need to follow the steps mentioned in this post.

Open to your Steam library on your Deck and go to the game you want to stream. Hit the arrow next to the big Install button, and a pop-up will appear. Select the name of your PC (in my case ...

Once your Steam Deck has transitioned to the Linux ... Now use the “Start Stream” button next to your console to connect to a console that you’ve configured for remote play or select a ...

A game streaming to the Steam Deck will harness your PC’s specs ... you can also click the Learn more button to get extra insight about what might not be completely optimized.