advertisers are.
you use adblocker. you're persona non grata to begin with. your purchases are not mapped back, that's why you keep seeing the stuff you just bought. for them, you are top of the funnel still. AdBlockers work! (20yrs in adtech)
for music, you're also irrelevant. you're old. music industry doesn't care about 25+ finding new music. they spend all their effort on keeping teenagers in a comfortable bubble to mine them for music purchases and shows. people under 25 spend pretty much all the money record labels make.
anyway, the system works and they do know everything about you. but your goals and desires are completely irrelevant to everyone involved money changing hands.