You know the type - comedy shows where the characters talk directly to the camera, popularized by 'The Office'. Best not to think who exactly the documentary is being made for, who funded it, etc. Just suspend, and enjoy.
Let's face it, traditional sitcoms can get cloying quick; that's why you need these shows, to bring some dark, sarcastic, alcoholic balance to your life. You can't have the Yin of Friends without the Yang of Fleabag.