Harris Dickinson was 20 in Beach Rats when he played the character 'Frankie'.
That was over 7 years ago in 2017.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 27, and has starred in 17 movies in total, 13 of those since Beach Rats was released.
In Beach Rats, I think Harris Dickinson looks: