Hi there @jer2665, this is an old thread but your workflow is exactly what I'm looking for; a way to exit menu bar apps (and for the same reason you listed, boom, although now I have Boom3d).
I tried installing it but no apps show when inputing text, or at all if it was supposed to generate a list on selection of 'quit'.
I'm on Alfred 3.
Just in case you're still out there!
🤞