You're sorta right, what's happened is that all these "scoopers" and "leakers" made up fake cameos that were never going to happen after watching what No Way Home did which was also a Multiverse story.
Now you're gonna hear them run with "Marvel cut stuff from the movie" when the cameos they said would happen don't happen to damage control.
I've never heard Kevin Feige or any of the actors in this movie tease any sort of cameos.
Then you've got the question why would Marvel pay actors for brief cameos and then cut that from the movie?
It makes no sense. All these leakers and scoopers are bullshytters.