Which chapter did inumaki loose his hands at?

Its in the other manga the jujutsu kaisen one, inumaki lost his arm at the shibuya arc at chapter 137

Hey is anywhere mentioned how gojo killed geto? And what he did with his dead body?

I don't really remember it being mentioned as far as i know (i mostly forgot some scene in the manga) when gojou saw geto he didn't really chase him. Im not sure if im right