Documentation/Installation Instructions is no longer in sync with latest version of Audacity #2
I'm on Windows so I'm not sure how this affects MacOS or Linux, although I'm guessing it will be pretty similar...
I tried following the installation instructions for the Audacity plug-ins and it actually doesn't work with the latest version of Audacity (2.3.1 as of the writing of this), as a few things have changed including some terminology.
Here are the updates to reflect the latest version changes:
I'll update or add another issue if I run into anything else. Cheers.