How to export your Google Podcast subscriptions to Podcastindex.org and then to Any other podcast app you like?

This is how

Once you have it all in podcastindex.org, it’s easy to export your list to OPML and then import back into another podcast app.

https://Podcastindex.org https://github.com/lucasrangit/google-podcasts-export-opml/blob/main/README.md