So Spoilers ahead. I watched the film 2 times now and I didn't like it.
I honestly don't understand why people are calling it the best superhero movie ever made. Nostalgia is the only thing I can think about. Logan, Deadpool, Spiderman 2, Joker and The Dark Knight Trilogy are far better in terms of plot, humor, acting and special effects.
Literally Spiderman wanting to cure all the villains is bs. Not of all them were going to die anyways and for Green Goblin and Dock Ock their fate was already written. Moreover the change of sandman from good to bad just because Green Goblin said that what you have is not a curse but a gift is stupid. Most of the villains don't even have a motive in this universe and not one of them gets enough screen time to get character development. It all serves for previous Spidermen to return. You'd think Tom would stop trusting villains after Mysterior lol. Also electro and Venom don't know the identity of Spiderman so that's a plot hole. Spiderman fighting with Doctor Strange is also dumb after all they've been through. And don't get me started about the humor. The only good things about the movie was the ending and the moments were all 3 Spiderman were together. It has some good parts, but it's not a great movie.