Works pretty well... Xbox One 1 day
combined playtime Full functionality in both game and menus with a xsx controller
Mouse Inputs Keyboard Inputs
Dismantl3d Steam Deck about 2 hours
combined playtime This template works great for the games on Steam that were designed with a keyboard and mouse in mind, without real gamepad support. The controller will drive the game's keyboard based events with buttons, but will make assumptions about which buttons move you around (WASD for movement, space for jump, etc.). The right pad will emulate the movement of a mouse.
Mouse Inputs Keyboard Inputs