Interviews are a deceptively tricky thing, mostly because they’re built on paradoxes. You just need to capture a natural, genuine conversation. In a setup that is neither natural nor genuine. Where there are mandatory talking points and a time limit. Y’know, nothing at all like an actual conversation.
Because interviews are so inherently manufactured, it’s very easy to get caught up in the artifice of it. You spend your time trying to make your interviews better with more cameras and more gear, when really the thing you needed to be focusing on is putting all that in the background and just talking to the person across from you.
The secret to pushing past all the artifice and getting a genuine interview is comfort. The talent needs to be comfortable in order to open up and give good answers, and the interviewer needs to be comfortable enough with the material that they can ask good questions.