After dropping off the Infinity Stones and Thor’s hammer Mjolnir to their respective points in time, Steve Rogers decided to live out the rest of his life with Peggy Carter in the past, re-appearing in the present day as an elderly man.
While Black Widow and Iron Man’s stories concluded tragically earlier this year in Avengers: Endgame (although we’ll be looking back at an untold chapter of the former’s life next year), Captain America received a happy ending once Thanos and his forces were defeated.