I would argue that most D&D games are roleplay light - it's MUCH easier to just run a mechanical game than one with lots of roleplay.
I can give you session after session of dungeon crawling, or low level story stuff, but trying to put together a campaign with good (consistent) characters with motivations and personalities is incredibly difficult.
The reason you hear about all the roleplay heavy ones (critical role etc, or even stories from other people's campaigns) is because they stand out as being special, exceptionally well done games.