Click "Full screen" to make the video feed full-screen. Optionally double tap on the video to completely fill the screen.
Enable Airplane/silent mode on your phone to disable push notifications
Connect your phone to your computer using a charging cable. For iPhones, this is a Lightning cable. For Androids, this is usually a USB-C or Micro-USB cable.
Mirror your phone screen as a virtual camera on Mac/Windows/Linux/Etc.