Having finally watched the whole thing, just writing some thoughts below...for those who maybe didn't or can't watch.
1 - Zuck really, really is all in on the metaverse thing. I was never sure if it was his idea, or he sees a trend, etc, but now I'm convinced it's all his idea. I find it odd but interesting someone with essentially unlimited real life resources seeks such escape.
1.5 - I think he also overestimates its success. He pretty much sees everyone using it for work, gaming, friend interactions, etc. I just can't see it being so ubiquitous. Also saying people will spend as much on virtual clothes as real clothes feels offbase, but maybe I'm wrong.
2 - I was a little frustrated because he seemed so... unemotional. Being asked about bullying, suicides... most things that would make people stop, think, or even choke up...Zuck just started into his spiels never really answering the questions well. Unsure if it's perhaps just because he's been asked so many times he has it loaded. Seems very inauthentic.
3 - The negative sum thing was interesting. He basically said any choice they make lowers people's opinions on FB, because the side that agrees just thinks 'about time' or 'at least they didn't screw this one up', whereas the side that disagrees gets angry. May sound basic to some, but I never really considered it before.
4 - It was nice to see Zuck -finally- show emotion toward the end, talking about family time and death. A side of him I don't think many people have ever seen. For the first time, he actually looked pensive and even perhaps distraught before answering. Though I did kinda laugh when he said it's weird he used to care about his company most before he had a family, but now it's probably his family. Something so obvious being presented as an aha moment felt...weird.