Why doesn't the address bar show after exiting fullscreen mode?

Question

After exiting fullscreen on mobile Galaxy A51 (and couple of other devices as well) address bar is not shown. The status bar does appear.

function toggleFullscreen(event) {
var element = document.documentElement;
  if (event instanceof HTMLElement) {
    element = event;
}
  var isFullscreen = document.webkitIsFullScreen || document.mozFullScreen || false;

  element.requestFullScreen = element.requestFullScreen || element.webkitRequestFullScreen || element.mozRequestFullScreen || function () {
    return false;
};
  document.cancelFullScreen = document.cancelFullScreen || document.webkitCancelFullScreen || document.mozCancelFullScreen || function () {
return false;
};
  isFullscreen ? document.cancelFullScreen() : element.requestFullScreen();
}

I've tried

window.scrollTo(0,0);

but it did not help. Any ideas how to fix this?

So I found out if I go full screen and then change phone orientation to landscape and then back to portrait - address bar appears.