Update for YouTube enables PiP functionality
Users on iOS have been struggling to watch YouTube videos in picture-in-picture mode for ages, trying different workarounds to enable the functionality on their devices. The good news is that Google is finally ready to update YouTube on iOS with PiP support.
The feature is currently live for some premium YouTube subscribers in the United States, but picture-in-picture mode should gradually reach all users in the coming days. Google has confirmed in a statement that the wider release is happening very soon, contrary to the rumors that PiP will arrive only to premium users.
PiP or picture-in-picture would allow you to watch videos in a small player outside of the main YouTube app.