Add a floating Link/Button to take reader to Rank Math SEO's Table of Contents on the page.

floating-link-rm-seo.html

<script>
  document.addEventListener('DOMContentLoaded', function() {
    if (document.getElementById('rank-math-toc')) {
        // Create the new anchor element
        var tocLink = document.createElement('a');
        tocLink.setAttribute('href', '#rank-math-toc');
        tocLink.setAttribute('class', 'toc-callout');
        tocLink.textContent = 'Table of Contents';

        // Insert the new element before the closing body tag
        document.body.appendChild(tocLink);
    }
  });
</script>
<style>
  a.toc-callout {
    background: #fff;
    padding: 10px;
    color: #080808;
    position: fixed;
    bottom: 0;
    right: 0;
    display: inline;
    border: 1px solid #ddd;
    font-weight: 700;
  }
</style>
<!-- You can also use the script in a separate JS file and style in customizer CSS or site-editor additional CSS. I recommend using Code Snippets plugin (https://gauravtiwari.org/go/code-snippets/) -->