It's just a standard Windows 11 computer, so it is entirely trivial.
They have a fullscreen console-like interface you can choose to launch, but it's completely unnecessary apart from controlling the TDP of the device. So, I just use the normal Windows desktop, and launch games just as if it were any other Windows computer. You could also use the Steam Deck's game launcher interface on Windows, which is now available on any Windows computer as an alternative to the traditional Steam Big Picture Mode.
They have a fullscreen console-like interface you can choose to launch, but it's completely unnecessary apart from controlling the TDP of the device. So, I just use the normal Windows desktop, and launch games just as if it were any other Windows computer. You could also use the Steam Deck's game launcher interface on Windows, which is now available on any Windows computer as an alternative to the traditional Steam Big Picture Mode.