The device runs on Windows, supports Xbox applications and PC versions of games, including the Sony catalog. In practice, this means you can run God of War, Spider-Man Remastered, Horizon Forbidden West, and The Last of Us Part I. The new design and improved performance ensure smooth gameplay, and the graphics can be adjusted as on a PC.
The video shows Uncharted 4, Days Gone, Returnal, Spider-Man Remastered, Spider-Man 2, God of War, God of War Ragnarok, Ghost of Tsushima Director’s Cut, Bloodborne, Ratchet & Clank: Rift Apart, The Last of Us Part I, The Last of Us Part II Remastered, Horizon Zero Dawn Remastered, and Horizon Forbidden West Complete Edition.
ROG Xbox Ally X can be called a "portable Xbox" thanks to Game Pass, integration with the Microsoft ecosystem, and the Xbox interface. But in essence, it is a portable PC capable of running games from almost any platform.