 DAW doesn’t recognize the plugin, take a look at
  <code>Package Requirements</code> section of the link below and make
  sure all the VST3 related package is installed.</p>
  <ul>
  <li><a
  href="https://steinbergmedia.github.io/vst3_doc/vstgui/html/page_setup.html">VSTGUI:
  Setup</a></li>
  </ul>
  <p>REAPER on Linux may not recognize the plugin. A workaround is to
  delete a file <code>~/.config/REAPER/reaper-vstplugins64.ini</code>
  and restart REAPER.</p>
  <h3 id="macos-specific"><a href="#macos