If your are talking about Spotify, my understanding is that you are not directly contributing cents to each artist you listen to based on plays, but rather based on overall popularity pool. Your subscription money then mainly goes to Taylor Swift. You do increase the popularity of the artist, but if you for instance like some hard-to-digest music you listen to once in a while, that does not really do much.
You can relock your bootloader with CalyxOS on a Fairphone, a Dutch phone company.