I'm kind of OCD and like to know what data is behind every recommendation system.
Is there a way to view all the loved (hearted) items (songs, playlists, etc.) in Apple Music?
I believe at worst case scenario one could just reset them.
If you are listening in iTunes you can make a smart playlist which automatically adds all loved songs to it.
Note that this playlist will only contain songs that you "loved" on each respective device. I.e. if you love a song on your iPhone it will not appear in your "loved songs" smart playlist on your mac, or vice versa. This appears to be a syncing bug which may or may not be fixed one day.
Im guessing these answers didnt solve your problem. They didnt solve mine. Insead i went and got my data from apple:
super irritating that you have to go through this process to find this.
Just figured this out myself today, so here's how to do it:
Click the heart button (♥) to Love the song
Click the 3-dot button (...) and then click Add to My Music
Create a Smart Playlist where "Loved" = "is true"