@sstephenson probably too much work, but I know someone who uses an RSS downloaded on their NAS to feed podcasts into an Audiobookshelf collection and then listens to them through Prologue ( https://prologue.audio ), an excellent audiobook player for iOS that also works with Plex
Again, it’s probably too much work,
But as a happy Prologue user, it was my reason for setting up Audiobookshelf in addition to Jellyfin as I move off Plex