Avengers Endgame: Finally Explained How Captain America Returned to the Present

Avengers Endgame: Finally Explained How Captain America Returned to the Present

It is finally explained how the old Captain America managed to return to the present in Avengers: Endgame!
Avengers: Endgame is still the biggest event in the history of the Marvel Cinematic Universe, having broken several box office records.
The film is seen as one of the best for fans, being a worthy ending to the Infinity Saga and an emotional farewell for many Avengers such as Iron Man, Captain America and Black Widow.
But Captain America's farewell wasn't exactly what fans expected. While many firmly believed in the character's death, his outcome was more dignified, managing to deliver a happy and deserved ending.
Upon returning to return the Infinity Stones, the Captain took the opportunity to live a life alongside his great love, Peggy Carter, sometime after the end of the Second World War. Already aged, the hero still returns to deliver the shield to Sam Wilson.
But how did Steve Rogers manage to return to the main timeline? On top of that, outside of the machine developed by the Avengers? We have two official explanations. One by the directors of Endgame and the other by the film's screenwriters.

How did Captain America return at the end of Endgame?
The directors of Endgame, brothers Joe and Anthony Russo, followed the explanation given by the film itself, that when you go back in time you end up creating an alternative timeline, continuing in a reality that does not alter the main timeline. In other words, if an Avenger went back in time to kill Thanos when he was still a baby, as suggested by Rhodes/War Machine, none of this would have affected the timeline from which the person started, and Thanos' extermination would continue. intact.
And it was this explanation that Joe and Anthony Russo gave at the time, that Captain America lived alongside Peggy in another timeline and then found some way to return to the main timeline to deliver the shield to Sam, either using the Pym Particles, a new machine, or any other invention from your timeline.
The film's screenwriters, Stephen McFeely and Christopher Markus, claimed at the time that Steve remained in the main timeline, living a life there with Peggy. According to the writers, his return in time did not create a branch in the timeline because he was always supposed to be there, in the past.
Therefore, Marvel itself has already disagreed about the events. Which official explanation do you find most plausible for Captain America's case? Leave your opinion in the comments and, finally, write in the comments "Captain America" ​​and I will respond to your comment with a curiosity about the character