I'm using antennapod because I had suspicions based on the ads I was getting that PocketCasts was selling the info of podcasts in my queue/listening history. After that I read their privacy policy to confirm that's something they do and deleted my account/the app
edit: important to add, I had a paid subscription account and they still appeared to be selling data on me
The Session team claimed this when defending the security of their app and network, even in the face of the Australian government passing laws that allow them to backdoor any local tech companies