Conor shocked me and most of the world when he landed a flush uppercut on Mayweather in the first round. didn't phase Mayweather one bit. that's because all the power Conor has in MMA didn't translate to when he used (or i should say attempted to use) boxing technique. for a variety of obvious reasons, which hopefully most of you already grok and i don't need to get into.
my guess is that most mma players would suffer the same way.
EDIT: ok i listened. he says he hits just as hard on the gloves. my question is whether he hits as hard while boxing. because that's where Conor suffered; while he was focusing on footwork, body placement, etc, he lost all his power.
and if Ngannou boxes the way he fights mma, my guess is he gets outclassed and KTFO'd by a top 25 boxer. though if he lands, he will land hard.