They will now block audio analytics in Safari (if you listen to podcasts in browser) and also block some APIs for other Devs. If you want more insights publish on Apple Podcasts.
Also want to subscribe to a podcast on Spotify, no you can't. Spotify can't even mention it that such an option is available:D
Many interesting things happening in the world of podcasts. In a 'may you live in interesting times' kind of a way.