There are podcasts for almost every topic where experts are present. Journalists, Scientists, Activists, Researchers etc. can be heard in podcasts, I don't really see why it's generally a mistake to listen to a podcast to learn important information.
During the pandemic my partner was attending university from home and listening to their professors via MS Teams, these classes were also recorded so that they could listen to them at a later point. In some ways that's just a professional podcast.