Hi Don,
back to basics…close the sim…
why do you say “fs- base- ingamepanels-custom” is “the Community folder”/
When looking to your first post it shows that FBW installed the A32NX in the correct place.
[1] Check with windows explorer if you can find this: (forget my addition -Stable-…)

If that is correct… dont touch!
[2] Go to the location where you read:… /fs- base- ingamepanels-custom/
this should be in location:
\Roaming\Microsoft Flight Simulator\Packages\Official\OneStore
or if you have Steam
\Roaming\Microsoft Flight Simulator\Packages\Official\Steam
If you find a folder there, called …\Community: look into the contents AND if there is any subfolder A32NX --> DELete.
Then Run the A32NX Downloader
Do not change the destination folder and hit Stable version
and verify the the result.
Start the sim; you should get the my picture from 23/12 9:53 PM
Let me know