I'm sure this comes as no surprise, but they need to fix their algorithm. Don't advertise me Morgan Wallen when I've been listening to speed and thrash metal for the past six months and the last country song I listened to was Hank III over a year ago.
Honestly I think it's like Facebook, the advertiser can pick and choose what demographics see it- and some of them don't care, and just hit "select all". Waste of their money and annoys people who have no interest in the artist/genre being advertised because it should be targeted.
They control the algorithm. If it gives you good recommendations, it is because they want to lure users in. Then they will slowly start pushing only whatever makes them the most money like other platforms do.