Now you can now enjoy PiP video calls and have text-only Status messages. We have previously discussed the text-only status message feature before so we will just talk about PiP here.
PiP or picture-in-picture mode is a feature of Android Oreo that allows a video element continue to run in a small window even if the main app is minimized. WhatsApp takes advantage of this feature by letting you minimize your video call to a small window if you leave the main app and switch to something else on your phone.
Meanwhile, The PiP functionality is only available on Android devices running Oreo.