"Discovery weekly" and "new releases" are not sorted as far as I know, but related artists may be. A key factor at play here may be that there is no "best", the

"Discovery weekly" and "new releases" are not sorted as far as I know, but related artists may be. A key factor at play here may be that there is no "best", the variety of the recommendations feels like a positive for music whereas it could be a negative for a larger commitment like novel or for a consumer product. Even Spotify's objectively terrible recommendations (such as once recommending an album called "Music of Lorestan 1" for the synthwave artist "Saffari") turned out to be nice discoveries