JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<div class="dynamic">
  This text is hidden if another div contains the word "download"
</div>

<div class="something">
  <div class="btn-download">
  If this text has the word download the div with class "dynmaic" is hidden
  </div>
</div>

JavaScript

jQuery(document).ready(function($){
  if ( $('.btn-download').text().indexOf("download") !== -1) {
    $('.dynamic').hide();
  }
});