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Google admits Spotify pays no Play Store fees because of a secret deal | TechCrunch
(techcrunch.com)
This is a most excellent place for technology news and articles.
As a Spotify user, I'm not really ok with how much they pay artists... But I don't use Spotify for "streaming" even though I stream a lot from them, I use it to discover new music, find obscure bands, their algorithm is amazing at that.
I could easily selfhost as you suggested, but then it would be my own music bubble.
I go to concerts and buy merchandise as much as possible when I want to support an artist.