Official SteamOS Tested on the ASUS ROG Xbox Ally X20

The ASUS ROG Xbox Ally X20 is a new ROG handheld featuring a 7.4-inch 120Hz Nebula OLED display, TMR sticks, a switchable D-pad, 24GB RAM, and an AMD Ryzen AI Z2 Extreme processor. The content tests the official SteamOS build on the device, covering setup adjustments, game performance, and preliminary battery life.

■ Hardware and SteamOS setup
- Specs and design details of the X20
- Working controls, menu behavior, and current limitations such as RGB lighting and the quick menu button
- TDP control through Decky Loader and Simple Decky TDP Control, plus an audio workaround

■ Game performance checks
- 1080p, 900p, and 720p tests across titles including Forza Horizon 6, Red Dead Redemption 2, Mortal Kombat 1, The Witcher 3, Hogwarts Legacy, Spider-Man 2, Doom: The Dark Ages, and Cyberpunk 2077
- TDP ranges and FSR/frame generation settings, along with display characteristics

■ Battery observations
- 80Wh battery estimates at 6–8W, 17W, and 25W TDP levels

It is aimed at viewers considering the X20 or SteamOS on handheld PCs, and provides an overview of compatibility, performance, and battery expectations. Viewers can use it to gauge whether the current SteamOS experience matches their use case and what to watch for before trying it.