This would be easier for people who would want to speedrun 100% but not get all the koroks. I would do this run one day.
A likely more clean category like this is All Quests, which has a world record just under 10 hours. This category can be found on the extensions board, perhaps because it isn't popular enough to be listed on the main board.
Because of the player I am I would do Main Quests + DLC. Mods, please lock the forum now.
For the record, Koroks aren't the biggest problem for 100%; it's the map meter because missing locations is a major time loss.
You could technically have 100% minus almost all the Koroks (you're required to get one or three for Hestu's quest) and it'd be distinct from all quests, but I'm not sure who wants to do all the things required for 100% minus Koroks that's not already covered by All Quests.