Of the plethora of protagonists in Guardians of the Galaxy Vol. 3, Gamora has experienced the biggest change since her last appearance. Naturally, they've all been through a lot, with both The Snap and its undoing taking place since the events of Guardians of the Galaxy Vol. 2. But Gamora died earlier, only to return as a younger, darker version of herself during the Time Heist in Avengers: Endgame. She is, in all respects, a very different person than she was a short while ago.
Source：https://www.cbr.com/guardians-of-the-galaxy-3-what-happened-to-gamora/
