Spider-Man: Far from Home is a fun road trip movie with raised stakes. Homecoming is still my preferred Spider-Man film (I mean, they got the Vulture right), but this is also pretty good.
Nick Fury does not seem to be his usual, in charge self. But all gets revealed. Partially due to being 5 years behind in intel. Partly.
The school trip aspect gets Peter to places attacked around the world while still keeping his classmates around. Who all just happened to be snapped away by Thanos, so they are still the same age.
For the plot, Elemental monsters appear and attack various spots around the globe. The Avengers do not appear to be around. Iron Man and Black Widow are dead. Thor is offworld. Cap is retired. Nick Fury turns to Spider-Man to help. We get introduced to a new hero, Mysterio. He claims the Elementals are monsters from his reality that destroyed his Earth and will do the same to the 616 Earth.
Spidey and Mysterio team up to fight the Elementals and save the Earth. Hopefully in time for Peter to confess his feelings to MJ.