It's raw and maybe it's premature, but I'm underwhelmed by Vegapunk to the point of being salty.
He was supposed to be the genius grand line scientist who could do all these amazing things with devil fruits, feed them to objects, extract their powers from one user (kizaru) and give them to another (kuma), and most importantly, explain what they truly are. Instead, all we got was some feel good nonsense about people's dreams.
He was supposed to be able to use ancient technology in a way no one else could...in a way he did, but his work got hijacked by the gorosei, and he couldn't do anything about it.
Overall, he's been incredibly "street stupid" especially now that his contingency plan of the ancient robot safeguarding the broadcast den-den mushi failed as well. He let himself get betrayed by his own creation, apparently knew it was happening, and took inadequate measures to prevent the impact.
And, unless there's a curveball next chapter, he was hyped to potentially reveal something new about the void century, instead he offered no materially new information to the reader.
Name dropped in an SBS I don't even know how long ago, maybe 20 years, at least 15...and this is what we get. Even his death scene was pitiful and frankly disrespectful. So much so that I'm still not 100% bought into him actually being gone.
On the topic of Big Mom, I sincerely feel sorry for you folks that are big fans of her. Both given that she was a woman and her downfall arc being the penultimate one of the series, it was mostly written in the stars that she was going to get done dirty by Oda. Her and Kaido were meant to be the last "strong" characters to go down before we entered the endgame. That was pretty much their only purpose, to demonstrate that Luffy was ready for the endgame. The worst part about her nerfed personality to me is how its mislead most of the fanbase to view her as a dumb or childish character, and diminish the edge off of her evilness. Whereas when she was lucid, she was cruel and calculated as the likes of Doffy and Crocodile, if not more. I don't put her strength level as high as you, but as a leader, she was truly everything you'd expect a pirate with the title of emperor to be.