JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="bootsrap.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
<li id="menu-item-6706" class="menu-item menu-item-type-custom menu-item-object-custom nav-item nav-item-6706 border border-dark border-start-0 border-end-0 border-bottom-0 border-md-top-0" data-bs-toggle="modal" data-bs-target="#exampleModal" data-section="section-2"><a href="#contact" class="nav-link ">Contact</a></li>

<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#exampleModal">
  Launch demo modal
</button>

<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog modal-dialog-scrollable">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
      </div>
      <div class="modal-body">
        <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Fuga quidem corrupti obcaecati minima vel a similique quae consequuntur dicta ipsa quibusdam necessitatibus saepe minus assumenda sed odit, aut et exercitationem?</p>
        <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Fuga quidem corrupti obcaecati minima vel a similique quae consequuntur dicta ipsa quibusdam necessitatibus saepe minus assumenda sed odit, aut et exercitationem?</p>
        <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Fuga quidem corrupti obcaecati minima vel a similique quae consequuntur dicta ipsa quibusdam necessitatibus saepe minus assumenda sed odit, aut et exercitationem?</p>
  ...

JavaScript

$('#menu-item-6745,#menu-item-6706').attr('data-bs-toggle','modal');
	$('#menu-item-6745,#menu-item-6706').attr('data-bs-target','#exampleModal');

$('#menu-item-6706').on('click', function (){

	$('#exampleModal').on('shown.bs.modal', function (event) {
		
		$("#exampleModal .modal-body").animate({ scrollTop: $('#exampleModal .modal-body').prop("scrollHeight")}, 'slow');
		
		});

});