I think this only works if you set “prefer local meta tags”.
Separate versions of an album go into a separate folder, within their shared artist folder. i.e. like https://support.plex.tv/articles/200265296-adding-music-media-from-folders/
(don’t add additional versions into subfolders of the album folder)
With the above in place, you wouldn’t even need to tag the files with different album titles (although doing so is quite advisable) to keep them separated.
All of the above applies to using the modern “Plex Music” agent.
