Spider-Man 4 is a Fantastic Four team-up movie

The script rewrites. The pivot from grounded to multiversal again. The RDJr recast.

I bet they're fast tracking their big comic book moments for two reasons : Exploit having Holland ln board at the same time as the FF - Set up big relationships for Secret Wars

Big comic book moments : Johnny and Peter's friendship - Reed analyzing the symbiote suit - Spider-Man's role in Secret Wars including Doom now played by Downey - Peter bonding with Franklin - Peter's OG personality of hating everyone because he feels isolated and alone

AND

If there's one person who COULD make people remember Peter again, it's Reed here (Who has done THE SAME THING in the comics with The Sentry) or Doom in Secret Wars