Now that we're learning this lesson that centralized silos are brittle and operate in the interest of the owners not the users...

...please note the move toward centralizing podcasts into apps from Amazon/Audible, Spotify, iHeart, YouTube, TikTok etc.

If you like podcasts, use an RSS-based podcast player. Support the open ecosystem. We can only survive if you clearly see the threat and act supportively.

@leo is there a federated podcast … well, hub or however you name it
@knechtomat @leo I don't know of a hub, but Castopod (https://castopod.org/) is a platform for self-hosting podcasts. It uses ActivityPub, so podcast releases for shows you follow should be able to show up in your Mastodon feed, and it also publishes to RSS so existing aggregators can pick it up too.
I haven't used it personally, but it seems like something that could take off.
Castopod | Your Free & Open-source Podcast Host

Castopod is a free and open-source hosting platform made for podcasters. Engage and interact with your audience whilst keeping control over your content.