https://unitedpn.com/themes/corporate_lite/js/custom/in-page-navigation-scroll.js?v=10.6.13

1(function ($, Drupal, drupalSettings, once) {
2  Drupal.behaviors.inPageNav = {
3    attach: function (context, settings) {
4      once('inPageNavInit', ".link--smooth-scroll", context).forEach(function (item) {
5        var adminHeight = parseInt($('body').css('paddingTop')) || 0;
6        var anchorDestination = this.hash;
7        e.preventDefault();
8        $('html, body').animate({
9          //scrollTop: $($(this).attr("href")).offset().top
10          scrollTop: $(anchorDestination).offset().top - drupalSettings.corporate_lite.inPageNavigation.inPageNavigationOffset - adminHeight
11        }, 1000);
12        if (history.pushState) {
13          history.pushState(null, null, anchorDestination);
14        } else {
15          location.hash = anchorDestination;
16        }
17      });
18
19    }
20  };
21})(jQuery, Drupal, drupalSettings, once);