Make a view to see only your unplayed podcasts, sorted by most recently updated, and allow it to be a permanent view. Model the Apple podcast “listen now” view. I would stick with Apple but some podcasts are only available on Spotify.
You can do this on Mobile when you open a show > Sort > Sort by Unplayed. You can also toggle between oldest and most recent. This is indicated when you click on Date and see the arrow change rotation.
If you think your idea should be considered as separate, feel free tosubmit it again highlighting how your idea is distinct from the existing one(s).