Does Spotify automatically pull in podcasts wether or not the people that made it want to be on the platform or not?

However I think the part missing (which again I am trying to fully understand what is happening here, their website really glosses over what is happening) is if Spotify was pulling podcasts from a place that served their own ads to instead serve Spotify ads without compensating where they got it from.

Which my understanding here, is what Musi is doing.