Spotify has bought out some podcasts and injected their own ads into them. You can tell which ones these are because the “now playing” bar switches from the podcast to the title of the ad. I find I’m unable to skip these in my car with my infotainment controls too which has lead to me unsubscribing from some of them.
I used to really enjoy the Discover Weekly lists but for the past few years it just pushes what sounds like AI generated music. It’s like a bunch of covers of popular music done by people I’ve never even heard of (who probably cost Spotify less $ per play). I’ve had better luck with stuff like Spot-a-like recommending new/similar music that I actually might like.