As we know, there are some times that Marvel movies have events that run simultaneously with other storylines from other films in the MCU, and it appears that Eternals takes place at the same time as the events of Spider-Man: Far From Home, and this makes perfect sense.
As we know, Spider-Man: Far From Home /currently holds the most advanced place in the timeline as far as the movies are concerned and since Far From Home arrived in cinemas post Endgame, it has been the one marker that all other movies could be gauged by.
“Right around the same time as Spider-Man: Far from Home, with the world recovering from the attack of Thanos and the return of half the population,” he said.
Now a new piece of information that places Eternals alongside another Marvel movie makes for some intriguing theorising.