Once you're on Windows 11 25H2, opening Settings > Gaming might show a new, fourth option saying Full screen experience.
TL;DR: Microsoft's new Xbox Fullscreen Experience app, designed for handheld Windows 11 25H2 gaming PCs, optimizes system resources by disabling non-gaming functions, freeing up about 1GB of RAM.
Fullscreen offers a FPS boost for a more fluid experience, while borderless fullscreen gives you the flexibility of seamless ...