SPOILER ALERT ... and not the usual 'spoiler alert,' where I don't tell you anything you don't already know is gonna happen; but something mysterious that will change how you watch the movie (making it a different movie almost ...)
See, it weaves smoothly into the MARVEL universe (changing the name of 'the 5 years that people had been gone because of Thanos's snap' from "the decimation" to "the blip"). In fact, the main antagonist whom they call "Mysterio" uses the recent Avengers-activities as a sort of 'cover' for his attempt to fool the world into ... worshiping him?
"Mysterio" is a 'character' put-together by a team of Tony Stark''s former employees with their leader----who also ‘plays the part’ of Mysterio … a (fictional) being from a (fictional) parallel universe whose Earth was permanently decimated by the (fictional) Elementals.
There … a REAL ‘SPOILER,’ as--before I learned that Mysterio was “fictional” (like Ben Kingsley’s "Mandarin" in IRON MAN 3)--I thought he was really a Thor-level superhero … heck, even Nick Fury & Agent Maria had practically installed him as a member of The Avengers!
But do stay for the post-credits scene, as it sets up a major conflict Spiderman will have to deal-with in his next movie (or more).
They tend to correct the title them selves if is is famous movie or something like that! Looks Correct to me, Spider-Man Should have a hyphenate like the old comics
Oh ... and I didn't even mention the BAD renaming of the "Spidey Sense"---that's what he should've done when May (a.k.a. "Aunt May," but he never called her that) or Happy called it the "Peter Tingle," he should've responded, "You mean the Spidey Sense? Spidey Sense!"
I've also submitted this review under "Spider-man Far From Home" (with the 'dash' between spider & man) ... I'm not sure which one's 'the "canon" spelling' LoL ...