This take again?
It was how OTHER people saw him, I mean come on my guy re-read the end of hidden inventory "are you the strongest because you're satoru gojo or are you satoru gojo because you are the strongest" < his best and closest friend btw.
Wtf are you waffling about? No shit he's sees that Gojo is the strongest. Very surface level observation
The real problem is that Nanami says that he was only ever in it for his own self-satisfaction, when everything from before proves otherwise.
It does not help that Satoru doesn't dispute this.
It does NOT help that Nanami has witnessed him at his best, like when he corrected him calling Yuji "Sukuna's vessel," referring to Itadori by his full name.
It does
NOT help that Haibara says everyone thinks that when we were previously shown moments including Yaga witnessing him lamenting over the fact that he can't save everyone, Shoko praying for his return, Ichiji being grateful toward him for his kindness, and Gakuganji changing his opinion on him, as well as overall everyone having a good opinion of him.
It does
NOT help that Geto doesn't dispute this, despite knowing Gojo's heart was in the right place after the former defected.
It does
NOT help that he only talks about Sukuna, treating his students as an afterthought, and saying he "wanted to teach Sukuna about the solitude strength brings" and "being sorry that he couldn't" when, before, he showed contempt for him and almost snapped when he used Megumi as a medium to get hit by Unlimited Void.
TL;DR 236 tries to act like Gojo was in it for his own self-satisfaction and that people think so, when it's very much the opposite. tldr tldr character assassination and not just Gojo