Import a sample podcast subscription list into gPodder, including a show with a large archive and one that changes its feed. Download episodes, mark some as played, and test how the app handles storage cleanup and interrupted downloads.
If you listen across devices, verify the synchronization approach you plan to use and what state it actually preserves. Export subscriptions before switching clients. A podcast manager should make new episodes easy to find without losing your library or repeatedly downloading files you already heard.
Akousa