Starting with iOS 14, iPhones now support Picture-in-Picture (PiP) mode. By default, when you switch from playing a full-screen video in a supported media app, it will continue playing in the corner of the screen. If you find this annoying, you can easily turn it off.
- To do so, tap “Settings.”
- Tap General > Picture in Picture. In the “Picture in Picture” settings, toggle-Off the “Start PiP Automatically” option to disable it.
Now, the next time you return to the Home screen while playing a video, Picture-in-Picture won’t pop-up automatically. To manually open Picture-in-Picture (if the app you’re using supports it), just tap the Picture-in-Picture button.
Source: HowtoGeek