If you'd like to hide the help widget on mobile, you can use this code:

<script>
  if (!('ontouchstart' in document.documentElement)) {
    window.fwSettings = {
      'widget_id': <widget_id>,
    };
    var el = document.createElement('script');
    el.src = '<widget_url>';
    el.async = true;
    el.defer = true;
    document.body.appendChild(el);
  }
</script>