Kiersey Clemons was 26 in Zack Snyder's Justice League when she played the character 'Iris West'.
That was over 3 years ago in 2021.
Today she is 30, and has starred in 27 movies in total, 5 of those since Zack Snyder's Justice League was released.
In Zack Snyder's Justice League, I think Kiersey Clemons looks: