Question: How did Peter Parker know how to cure Sandman? He'd never found out how Sandman was created, so how'd he know how to cure him?
Rob245
13th May 2024
Spider-Man: No Way Home (2021)
3rd Dec 2023
Spider-Man: No Way Home (2021)
21st Oct 2023
Spider-Man: No Way Home (2021)
Question: Once cured and returned home, won't some of the villains, like the Lizard, still go to jail anyway?
Answer: More than likely... but that doesn't strictly matter. They'll still have been cured, avoided death, and "saved" in a sense. Even if they lose their freedom, they still are going to have a happier ending than they would have otherwise.
Remember that Oscorp is a corrupt company in the Amazing series. More than likely, both Connors and Dillon might be killed in prison under orders, so some happy ending.
That's a very bold assumption to make, especially considering they DIDN'T kill Connors after the events of the original "Amazing Spider-Man." At most, Connors will remain in prison. But I don't even know about Dillon. There's an exceedingly high chance he could just walk, especially presuming he'd be teleported back to around the time he was originally killed, and the world would think he's dead.
Answer: The three Spider-Men worked together so they would tell each other about their worlds' villains and would figure out ways to cure them.