At least on iPhone it’s possible, you just have to press Play again on the lock screen: https://www.macrumors.com/how-to/keep-youtube-playing-in-background-on-i

At least on iPhone it’s possible, you just have to press Play again on the lock screen: https://www.macrumors.com/how-to/keep-youtube-playing-in-background-on-iphone/ https://www.macrumors.com/how-to/keep-youtube-playing-in-bac...