Also, a huge part of that show is the number of "main" characters, and seeing how those handful of traits among a large number of characters mix and mash and interact, both with each other, and in varying situations. I.e. Andy and Oscar may not be that complicated individually, but they hardly interacted until like season five and then suddenly got put in a situation or two together, which made for something fresh. That kind of thing happens constantly over the course of the show.
https://news.avclub.com/cameos-top-earner-of-2020-is-the-off...