Microsoft is testing a new aggregated gaming library within the Xbox app, which consolidates titles from various platforms like Steam, Battle.net, Ubisoft, Epic Games Store, and Riot Games. The Xbox app automatically identifies installed games on the PC, presenting them in an organized library with thumbnails and launcher names. Users can launch games directly or navigate to the original launcher, and there is an option to hide titles from various stores. This integration catalogs games without providing Xbox achievements or enhanced functionalities. Additionally, there are reports of "Xbox full-screen experience" settings appearing on existing ROG Ally devices, which are currently non-functional as Microsoft is testing this feature. Existing devices will eventually receive the full-screen Xbox experience. Users can access the new library by installing the Xbox test app through the Xbox Insider Hub and updating the Xbox app via the Microsoft Store.