it’s complicated, it’s based on what plan the person listening to you is on (people on the free ad supported plan pay the least, those on premium the most), what country you’re in (poorer countries payout less), what % of total streams you’re getting, what your label has negotiated with you, etcetc

https://dittomusic.com/en/blog/how-much-does-spotify-pay-per-stream

Getting rid of the ad supported plan would raise the average payouts quite a bit but Spotify has argued it is better to keep the plan and have people only pay for a little bit than return to the old days of music piracy where artists were getting nothing and had resorted to the RIAA suing people