Why doesn’t this feature work

The swiper and buttons in the “Customize Music” feature for finding underground songs doesn’t work properly, and neither do any of the other options. When I set it to “underground” it still shows me music by well-known artists with like 200-500k–1M streams, or songs that are already popular on this app with 1–2k likes. It doesn’t make sense and isn’t actually showing underground music same issue with all the other sliders it doesn’t change anything that much.