And then there's the bugs that don't get fixed for a long time. Last year they had one where every time a podcast was interrupted by a notification or something it would start over from the start.
Lastly spotify podcasts that are exclusive are not, by definition, a podcast because they don't have a valid rss feed. You might refer to them as shows but calling them podcasts ignores how podcasts are supposed to work in an open interoperable system.
And of course there's zero chance they will embrace podcast 2.0 features; https://podnews.net/podcast/i4ji5 https://podcastindex.org/podcast/value4value