YouTube is an entirely different beast. Even if they personally don't have ads, the platform itself runs ads and provides money to the creators based on those ads (or YouTube Premium subscription fees).

Podcasts don't usually have a "platform" that supports them, many of them are self-hosted, and the podcast app is just an aggregator with no middleman inserting ads or passing the listener data on to anyone else.

Heck, the fact that RSS feeds in general still exist is amazing and a wonderful way to get an unfiltered source of news, information, and entertainment.