Title, or refining how it functions.
I commented this on the wishlist post for "appears on" that was actualised, but seeing as it's been a week I figured I'd make a separate post about it. I'm not huge on the display, and whilst I think it's a good idea for features, as it exists it breaks collaborative albums as MusicBee can't match a partial album artist. Pictured below, Geoff Zanelli wrote additional music for the majority of albums listed. I'm happy with that appearing in the appears on section.
However, albums like Christopher Robin or Mortdecai officially have a dual album artist credit as they were a collaborative effort between two composers. Because album artists can't be split ala individual artist tags, MusicBee can't locate Geoff Zanelli in the Geoff Zanelli & Jon Brion album artist tag, and so it pushes the album (and any others like it, which I have dozens and dozens of for composers like Hans Zimmer) to "appears on" section when they're primary albums by the respective artists.
Hopefully I haven't just missed this option lol