The picture-in-picture feature on the OnePlus smartphone allows an app to lay over another app in a floating window or pop-up, for example, to continue playing a video over Netflix while you reply to a message.
Picture-in-picture access is allowed by default, but can be denied at any time.
- Open the Settings
- Tap on Apps & notifications
- Tap on Special app access
- Tap on Picture-in-picture
- Choose an app
- Enable or disable Allow picture-in-picture