This is one of two reasons I do not use Spotify for podcasts. I do not want it to keep playing after the episode is done. Secondly, there are no indicators of which podcasts are done, or progress through a particular episode. Huge shortcoming.
Updated on 2019-07-18
Hello and thanks for bringing your feedback to the Idea Exchange.
A similar idea has also been suggested here: https://community.spotify.com/t5/Live-Ideas/All-Platforms-Podcast-Individual-Autoplay-Settings/idi-p...
We have also merged the votes from this idea to that original one.
Regarding the second idea about indicators of when podcasts are done, please submit a new idea and include some more specifics.
More information about how the Spotify Idea Exchange works can be found here.