Anecdotally in my mid 20 central European bubble, ~95% of my peers use Spotify, with the rest using Google Play Music (including me). I don't know a single person using Apple Music, and I wasn't even aware that it existed as a paid service (though I think I've heard of it a few years ago).
I don't want something to select music for me. I listen to whole albums. I want to be able to search or an album or an artist and listen to one of their albums. Not a playlist that might feature them.
I hated Spotify's UX because it felt like it was hiding all of its music and trying to force me to listen to what it wanted me to hear.
The entire iTunes catalog free for me to listen fits my needs exactly.
If you have an iPhone and tried to use the music app to play your songs, you should be well aware that apple music exists. One of the more blatant up sells on ios.
I use iTunes-match and the built in music on ios ("upload" and stream all your music) and eventually figured out you can tone down the apple music reminders by turning of settings->music->show_apple_music
Then you account for the other big platform which is Google Music... I don't see a play for spotify here.
Say what now? https://play.google.com/store/apps/details?id=com.apple.andr...
Just shows the power of controlling the platform.