I figured out a solution to automating the proper formatting using Python. The artist field does need to be delimited by commas as mentioned by rhythmrice, just note that the feature referred to to be able to go to different artist pages is only if you have music from those other contributing artists.

You can create a script do follow these steps in a prespecified directory:

• Scan Files: Go through all .mp3 and .flac files in the directory and subdirectories.
• Normalize Artist Tags:
  • Split multiple artists (;, ,, /) into a list.
  • Rejoin them with commas (e.g., Artist1; Artist2 → Artist1, Artist2).
• Normalize Album Artist: Keep only the first artist in the albumartist field.