So have a look at the complete guide discussed below to proceed.
The Youtube app on Android already has a feature that could be stated as Picture-in-picture mode.
Thus the users could go on surfing youtube.

So lets begin with the main part of this article!
Go to the system prefs inside the Android through the notification panel gear icon.
Search for the Picture-in-Picture option under there and tap it to skip to the particular screen for it.

Slide the toggle to off from there to switch this function off, and you will be all done.
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