

Tbh you might be able to come back go pocket casts. They added a bunch of functionality back over time. Can’t remember what it used to be like anymore, but it works for me.
I have a free account and do have access to the filters. You can filter by podcast, started/not started, duration, etc. It may still not work for your needs though.
Yeah the current challenge with searching is if no one has subscribed to a magazine or user on another instance, you have to search the exact name@domain to get it to show up. Ideally Kbin instances would implement a user bot that subscribes to all the users and communities it can scrape from all federated instances until this search limitation is fixed.