Ambient display YouTube icon

Hi All. Does anyone know how to get rid of this YouTube icon? The app is not running, yet it's still there. Sometimes it also shows on the notification slide. It's mostly YouTube. Very annoying. Help?

Hi All. Does anyone know how to get rid of this YouTube icon? The app is not running, yet it's still there. Sometimes it also shows on the notification slide. It's mostly YouTube. Very annoying. Help?