Literally every other media app you can see all artists then open an artist to see all albums and all songs. Not everyone has full albums nor remembers what an album a song is on.
I copied all my music to a Nas to access from plex but find I’m still going back to my phone (free third party app) and playing music physically saved to my phone.
I put the Plex app on my Amazon fire stick so people can add music to playlists yet no one can find any songs unless I open every album. Totally useless.