It's the age old discussion on how sensitive people are to those issues. Not saying it's a bad thing but for some people, if the game runs 99,9% of the time on 4k 60fps, that's enough. Than you have people who find an area or two that has performance dips, down to sub 30fps for a second and then they call the whole game unplayable and sub 30fps.

I don't think there's a right answers to this but it explains the repeating confusing, of people making those claims. I finished TOTK on yuzu emulator and there was only one dungeon I remember with abysmal performance and it was the one where you drive around a vehicle inside a big arena. It probably runs like shit on original Switch too and I see it less of a fault of the emulator and more of the games engine.