Msdminiplayer -

: If it isn't working, check your device settings under Apps > Special app access > Picture-in-picture (Android) or Settings > General > Picture in Picture (iOS) to ensure the feature is enabled. How To Turn On Miniplayer On YouTube - Step By Step

: While a video is playing, swipe up or press the home button to exit the app. The video should shrink into a floating window on your home screen. MSDMiniplayer

: Press the I key on your keyboard to instantly toggle the Miniplayer on or off. : If it isn't working, check your device