Daztur
Hero
And that is a poor assumption. I would argue that a small section of monsters in the monster manual get the majority of play at tables. There are dozens of dragons, but I certainly don’t use them all in every single campaign.
Equating that a complex subject that requires a lot of words to explain with its commonality of use is a poor assumption, especially in the face of so many tables that report combat lite dnd experiences
Can you run a combat light 5e game? Certainly! Can it be a lot of fun? Most definitely. I just can't for the life of me think of any reason why you'd choose 5e over a broooooooooad swath of other systems when choosing to play that kind of game aside from familiarity/name recognition. It'd be like running a Cyberpunk game with 5e rules, sure you could do it but why?