Sometimes I kick off an episode maybe the most recently downloaded goes to the bottom of the queue and I click play. When that episode completes playing stops.
If I download two episodes they’ll both be placed at the bottom of the queue if I click the second one up both will play and then playing stops.
I think the default behavior or perhaps an optional behavior would be when the current episode finishes playing it plays the episode which is at the top of the queue that way you could potentially start any episode in the queue and it would play the entire cue very useful particularly if driving or your hands are otherwise busy.