Android Oreo brought a feature that would be available for third-party developers: picture-in-picture apps. A perfect example of this is the way that Google Maps is able to tuck away to a corner while you switch to another app to change music or to reply to someone before continuing to your destination. The YouTube app also offers this feature: videos can continue playing in a minimized frame on top of other apps so you can watch videos while you tweet, chat, or edit your weekend trip photos. The biggest limitation is that PIP only works for those who are subscribed to YouTube Red, leaving...
Source: https://www.gsmarena.com/youtube_pictureinpicture_is_working_for_some_nonred_users_outside_of_us-news-30900.php
