I’m confused by the Spider-Man movie. It’s got to be before Infinity War? Right?
The timeline is going to be confusing because of the likely time travel aspects of End Game. I think the movie (End Game) starts off at least a year or two after Infinity Wars, but this Spiderman movie seems to be based not long after Homecoming. Plus all of the main characters seem to have survived the finger snap since you see all of Peter's friends, schoolmates, and Nick Fury is also back.
I'm going to guess that the heroes go back in time before Thanos ever gets to Earth and stops him at that point and it would mean Spiderman never even gets involved with the battle to stop Thanos and his lieutenants. That makes Homecoming and Far From Home pretty much one right after the other with no Infinity War ravaging Earth.
By the way that definitely is Jake Gyllenhaal as Mysterio. I am not sure about the elemental people and what their deal is, but they seem to be fighting against Spiderman and Mysterio. I don't know what is going on to have the hero and villain fighting the same enemy. I don't recall those elementals from back when I collected Spiderman comics as a kid.