What is Picture-in-Picture?

Picture-in-picture (PiP) shrinks a video into a floating window that stays on top while you use other apps — directions keep playing over your messages, the match over your email.

On phones it triggers when you swipe home during playback (per-app permission under app settings); some services gate it behind premium tiers (YouTube). On TVs and Macs, look for the PiP icon in the player.