Drastic difference between zoom UI and meeting SDK UI

There is a drastic difference between zoom meeting SDK UI on web (reactjs) and the Zoom App UI. Why is that so? How can I achieve UI similar to that of Zoom App?
Meeting sdk UI missing all the basic crucial features of zoom desktop app or even zoom’s own default web. Like:

  • Different views - Grid view, author view
  • Record button is missing
  • CSS is poor quality as some child elements are going half outside their parent boundaries
  • Many others