Not the OP but for me I switched before they went opensource and I was having issues with how Patreon feeds were imported into Pocketcasts. Can't really remember the specifics but if I remember correctly their server was doing some episode caching and it was going all funky.
I stay with Antennapod now because it's very actively maintained and because of the Nextcloud gpodder¹ app and the Nextcloud Repod app². Lets me have a web player and sync entirely within my own infrastructure.