While royalties from streaming services are calculated on a stream share basis, a play still has a value. This value varies by subscription plan and country but averaged $0.01 for Apple Music individual paid plans in 2020. This includes label and publisher royalties.
My most played artist in Plex has 627 plays. Based on Apple’s average payout of $0.01 per stream, that would have resulted in $6.27. But I’ve purchased four albums for a total of about $40.
Apple may pay out more to artists than other streaming services, but it’s small potatoes compared to what artists could be making if everyone bought music instead.