It works fine. Disable all extensions, because they are usually the ones causing the issues, I mean, you have extensions installed, and one that looks like a sound icon right there pinned to the toolbar, so first, test disabling extensions.
Also, you can use Devtools to diagnose these issues, they might display errors which might help to understand the issue.
But audio works and Brave which uses Chromium or Brave shields shouldn’t break anything unless it was broken for everyone or you broke it by adding 3p lists or custom rules.