@ao @ilpianista you could also check Tim Pritlove's #CRE podcasts. https://cre.fm/ I think they are good for learners of German as they are well structured, audio is excellent and #Pritlove speaks very clearly and not too fast. The topics are always very interesting.
And they have mp3, m4a, vorbis and opus feeds, all available through proper rel="alternative" links, so you just have to put "cre.fm" into your audiofeed reader. Impressive!
The proper link elements should be minimum effort for anyone calling themselves a podcast, but sadly it's pretty rare.