Sean Gunn was 43 in Avengers: Endgame when he played the character 'On-Set Rocket / Kraglin'.
That was over 5 years ago in 2019.
Today he is 49, and has starred in 29 movies in total, 6 of those since Avengers: Endgame was released.
In Avengers: Endgame, I think Sean Gunn looks: