Yes it does. You are thinking of the key frames being inserted, but animating on 2s and 3s has to do with rendered frames. In on 2s you use the same rendered frame twice. So a 24 frame animation is now a 12 frame animation with every frame used twice. This is not the normal for 3D animation and that’s one of the reasons spiderman: into the spider verse has such a different feel to it when you watch it. K-POP Demon Hunters goes even crazier, because background is on 1s(normal 3D), the Demon Hunters are on 2s, and the demons are on 3S. As Rumi gets closer to Jinu she starts being on 3s.
