Audcaity will ignore incompatible plugins, rather than remove them from the computer.
In Audacity 3.2.x I can only see two Cockos effects on the effects menu, (despite seven being enabled in the plugin manager), and neither are available as real-time effects …
whereas in Audacity 2.4.x seven are available, and they work in real-time …
Cockos plugins are at least 6 years old, they are not VST3.
Audacity 3.2.1 only provides real-time support for VST3, (VST2 support is planned).