Swipe up to return to Home screen

How do I hide or turn off the home bar indicator on the iPhone 12? This is the bright white bar at the bottom of the screen. This is very annoying when I am watching a video and I do not want to be seeing the bar as it interferes with the video screen. This bar should disappear when the video is running. You need to provide the option to dim it or to turn it off permanently. Thanks.