(Very strictly, a podcast requires an RSS feed and the ability to download to an iPod, but those criteria have been eroded to "any audio programme that is not on the radio")
https://www.bbc.co.uk/sounds/help/questions/features/subscri...
This thread is teaching me that people would even draw a boundary there at all. It's clear from the people posting here that many really think of podcasts as "couple of guys sitting around shooting the shit", but there's a hell of a lot out there outside of this one genre.
It's a bit "I tried a bunch of science fiction books, but I didn't like them so reading isn't for me."
BBC Radio podcasts are not representative of podcasts, nor is it the reference point for most people that start one. Those people very likely have the image of two friends shooting the shit in front of a mic.