JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css">
<ul class="accordion" id="collapse1">
  <li>
    <div class="accordion-button collapsed" href="#one" 
         data-bs-toggle="collapse" data-bs-target="#one" aria-expanded="false">
         Maincategory
         &nbsp;/&nbsp;
         <a href="https://google.com" class="non-collapsing">
           open
         </a>
    </div>
    <ul class="accordion-collapse collapse" id="one" data-bs-parent="#collapse1">
      <li><a href="#">Sub 1</a></li>
      <li><a href="#">Sub 2</a></li>
      <li><a href="#">Sub 3</a></li>
    </ul>
  </li>
</ul>

JavaScript

$('.non-collapsing').on('click', function (e) {
    e.stopPropagation();
});