Those who haven’t followed every development in the MCU news cycle might be confused about when Spider-Man: Far From Home takes place considering Peter Parker died at the end of Avengers: Infinity War (and Avengers: Endgame, wherein he presumably comes back to life, has yet to open).
According to what Marvel Studios president Kevin Fege told IGN shortly before Infinity War came out, Spider-Man: Far From Home takes place after Avengers: Endgame.
Feige said that the film will see Peter contending with the aftermath of the events of the third and fourth Avengers movies: “What is it like to try to go back to a normal life after what happens in this movie
Source: IGN.com When Does Spider-Man: Far From Home Take Place?