Is the OSX python plugin functional?

I’ve been experimenting with the Python plugin in two installs – one in windows and one in OSX. The Windows version works as described in the docs. The enabling the plugin in the UI proceeds normally, and this shows up in the log:

LogModuleManager: Display: Found up-to-date module file ../../../Engine/Plugins/Experimental/PythonScriptPlugin/Binaries/Mac/UE4Editor-PythonScriptPluginPreload.dylib (API version 3944462).
LogModuleManager: Display: Found up-to-date module file ../../../Engine/Plugins/Experimental/PythonScriptPlugin/Binaries/Mac/UE4Editor-PythonScriptPlugin.dylib (API version 3944462).

However the UI associated with the plugin does not appear and the 'py` command does nothing (though it reports no errors).

I also seem to be having this problem as of today, with 4.20.3