The One UI 8 DeX Feature Samsung Doesn't Want You to Find Yet

Reviewed by Corey Noles Picture this: you're running Samsung DeX on your external monitor, and instead of that persistent taskbar eating up precious screen real estate, your apps finally stretch edge-to-edge like they should. Sound too good to be true? Welcome to One UI 8's hidden 'Immersive' mode—a feature that's buried so deep in the code, even Samsung's own developers seem to be keeping quiet about it. Here's what we know: Samsung's developer documentation confirms that "apps launched in DeX mode can be expanded into a full screen, immersive window" to "showcase the full features of an app without the expense of screen real-estate." Yet current One UI 8 beta users are reporting the exact opposite experience. XDA Forums shows frustrated testers complaining they "can't make apps proper full screen" because "the task bar is still visible however the app is running behind the task bar." Meanwhile, multiple sources including SamMobile have spotted references to this hidden immersive func