Steps to Reproduce

Flutter is painted on a canvas and the browser doesn't detect the scroll.

This causes problems when the native browser uses the scroll to perform their own actions.

Current problems:

• Safari and Chrome iOS/Android address and bottom bar navigation doesn't collapse when scrolling:
  Issues: [web] Allow Flutter apps to have 13% bigger screen after being scrolled down #64572 Flutter for Web does not hide url bar and navigation bar on scroll in iOS's Safari #68877

Current behavior	Expected behavior (would also need to scroll)

• iOS scroll to top by tapping on the status bar doesn't work. A feature available for any website in any ios browser or WKWebView

• iOS GoogleMaps, Google Assistant, Facebook & Facebook Messenger displays in-app websites inside a draggable modal. Because of scroll is not detected, the modal is closed instead of scrolling upwards.