Also, I can’t believe I need to explain this, but the reason why Yuta’s Cleave didn’t do much damage to Sukuna is because Sukuna didn’t allow it to cut further.
251, final page, Cleave is
centered dead in Sukuna’s face. 252, next page, first page even, we clearly see Sukuna has aimed the blade so
far away from his face. Yuta’s swords in the domain fully disappear after usage, so the fact that Sukuna can grab it, and pull it away after, means that it wasn’t done cutting through him, and only after that page it disappeared. Meaning Sukuna avoided the bulk of the damage, lol.