Windows Report

Microsoft Expands Full Screen Experience (FSE) to More Handhelds with Windows 11 KB5067115

Microsoft expands Full Screen Experience (FSE) to more Windows 11 handhelds with build KB5067115, including MSI Claw models.

Hands-On: Windows 11 Full Screen Experience ⭐

Anyone running Windows 11 version 25H2 can test the full screen experience that debuted on the Xbox Ally gaming handhelds.
PC Gamer

You can install the new Xbox Full screen experience mode for Windows on handhelds but whether it will work is another question entirely

Handheld Gaming PCs The MSI Claw handhelds are the first non-Xbox devices to get the Windows Full Screen Experience, with more said to arrive 'in the coming months' Handheld Gaming PCs So much for ...
Ars Technica

Full-screen Xbox handheld UI is coming to all Windows PCs “starting next year”

One weakness of Valve’s Steam Deck gaming handheld and SteamOS is that, by default, they will only run Windows games from Steam that are supported by the platform’s Proton compatibility layer (plus ...