Yep, it definitely gets worse if you interact. After a week or so of Spotify recommending a podcast on my home screen with the shape of a penis as it's cover image, I finally got annoyed enough to start looking for a "I don't want to see this" button. I never found one, but I spent enough time poking around for the cast to somehow get promoted to one of "my shows" with an even more prominent place in the UI.