I tried to look into what radio paid out to these same people as a comparison, but the information I found seemed to be purposefully obtuse:

https://soundcharts.com/blog/radio-royalties

I couldn't actually find out what was paid, but it did look to be that, artists weren't really paid. It was song writers and publishers who were paid. Performing artists, however, only generated word of mouth which generated ticket sales - so far as I could garner.

The quoted $0.0038 is the total of what Spotify pays out to the distributor, who then distributes it between themselves, the artist, songwriters, their labels, etc.