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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.
Again, not true - the royalty payments are based on revenue, not profit.
To understand how absurd the claim that royalty payments are based on profits is, consider that Spotify has had a grand total of two profitable quarters throughout its whole existence - are you seriously claiming that no artist ever got paid outside those two quarters?