I felt a lot of trepidation at the end of No Way Home, wondering how they're going to resolve everyone having forgotten about Peter. The answer is that he becomes a miserable recluse for four long years, watching his former friends' lives from the outside and being completely unable to move on. I think it's kind of darkly funny that everybody wanted MCU Spidey to move out of the shadow of Tony Stark, and yet here he's built a conversational AI for his suit because he literally has no one else to talk to. (How's he afford all that stuff, anyway?) I suppose people will point to the crowd outside the hospital at the end and say "see? Peter has people who love him." No he doesn't. In the memory scene, Aunt May tells him "the people who love you don't love you because you're special. They love you because you're you." New York loves Spider-Man because he's special, and because he does good things for them. He doesn't have anyone who loves him for being Peter Parker, and that's crushingly sad.
When they get around to the eventual X-Men films, it's going to be a little awkward to remember that heroic Jean Grey spent the first two-thirds of this movie being a gleeful sadist before they pulled a hard right turn into trying to make her sympathetic for the third act. What part of racing Peter to MJ's place to murder her helps her find her sister? When she possesses MJ and pretends to remember Peter, he tells her that if she ever had someone she really cared about, she'd know that's an unforgivable act. I love it when my heroes do cruel, unforgivable things for no discernible reason.
Did the movie ever explain why Peter is immune to Jean's telepathy? At first I just went "oh, I guess it's Spidey Sense, or whatever" but then she's psychically frozen everyone for a square mile and he's walking around like it ain't no thing. Okay.
Frank was fun. And it was nice seeing Yelena and Banner again, though you could have removed them both from the plot and it wouldn't have changed anything. Banner doesn't tell Peter anything he hasn't already figured out on his own, and then later we get some generic Hulk Smash to further pad out an already too-long movie.
Peter: Does your inhibitor work by blah blah blah science science science?
Banner: Yeah.
Peter: Theoretically, could someone super-science the DNA into a double-decomfribulated reverse jiggedyloop?
Banner: Uh, maybe.
Peter: Thanks, Dr. Banner! You've been a huge help.
Banner:
What a thrilling scene. Later, Peter gets the Hulk to relent by reminding him that they're friends. I don't think we've ever seen them interact before.
The fight scenes looked cool.