The new version of Samsung DeX in One UI 8 has a hidden “immersive” full screen mode that’s hard to find. Here’s how to enable it.

Samsung’s One UI 8 rollout finally reveals that its DeX desktop mode does support a true fullscreen mode — but you have to unlock it with a stealth-level long-press.

A new Google Meet option allows presentations to be shown in full screen during calls, pushing everyone else into a sidebar.

In contrast, the new full-screen preview mode in iOS 26 displays your screenshot across the entire display by default, complete with editing tools and Visual Intelligence options at the bottom.