Microsoft's "Full screen experience" mode for handheld gaming PCs is not officially available but can be accessed through a Preview version of Windows and a third-party tool called ViVeTool. Users must become a Windows Insider and update to version 25H2 to enable the feature. Asus showcased this mode at Gamescom, indicating it will be available with the ROG Xbox Ally launch on October 16, with other devices expected to follow. For Lenovo Legion Go S users, installing Windows 11 25H2 via USB and using ViVeTool is necessary to activate the feature. Initial impressions of the mode are positive, but issues with unresponsive controls and switching between modes were encountered on the Legion Go S.