With Android Oreo, Google introduced PiP mode to developers. However, it was not picked up much. Google’s own Youtube could not implement it properly. However, Netflix managed to work it out and pushed an update to devices that can support this feature. But interestingly Netflix made the feature available for those users who are on 8.1 rather than 8.0. IF you are using an Android device running Android 8.1 or more then try it out.