Various Artists
I've realized that there is no longer the option for a 'Various Artists' artist page, which was basically every soundtrack/misc album I have on my lastfm. I raised the concern about some albums showing on artists' pages that don't belong to them, but what I realized is for instance:
Changes is by Justin Bieber
However, it's on Ariana Grande's page for me because 'Stuck with U' is on that album for me on my lastfm, and it's the song with the most streams so I guess the platform thinks its her album?
Same with 'Can't Catch Me Now' by Olivia Rodrigo being on the Hunger Games soundtrack, it's on her page since I streamed that the most from the album.