Like you go search to the Wikipedia page… Monster: Steve. Steve. I’m gonna get that webpage taken down, alright? Avengers: Endgame: Knowing that Steve Rogers stays in the past with Peggy just after returning the Infinity Stones and Mjolnir to their good timelines provides a different tone to the scene, with a powerful implication that Bucky already is aware that he just isn't coming again (other than via The Slow Path).