@WiiM Support Doesn’t work for me, the only results I get are from Tunein. For example, I’m listening to “The Rest is History” podcast on amazon music on my iPad, but when I search for that in the WiiM app it doesn’t appear in the search results, with only the header for Tunein but nothing from Amazon Music nor Spotify.
Also, podcasts aren’t supported by AlexaCast from the Amazon Music app (they never have been in my experience) - even if I connect to a WiiM device or indeed an echo, playback continues on my iPad, not the connected device. Chromecast doesn’t work either from the Amazon Music app for podcasts. Airplay however does work.