- Open any video on YouTube app.
- Swipe down on the video to popover. This plays video on the side while we can browse the YouTube for other videos.
- Now switch to another app on the iPhone. The popover will continue playing while we browse another app.
- Without popover, the video stops playing and will require YouTube Premium, I guess.
I am not sure if this is a premium feature or the way it works by default. Nonetheless, it's new to me.
