App version: 3.4.0 (from Google Play)
Problem you may be having, or feature you want: I confess, I subscribed to too many podcasts, and now have put myself in the predicament of weeding off my subscriptions list. Sorting them by number of episodes played sort of helps, but not really if I want to rid myself of podcasts I binged listened to, but no longer.
Suggested solution: Adding a sort by last listened option to the subscription order setting would… sort this out (no more puns, I promise — I’m done anyway).