Thanks Carl!
I have not tried your suggestion, but I tried:
import {TweenLite, Linear} from "gsap";When I only want to import TweenLite, I do not use TweenMax. However, it doesn't work, when I inspect my bundle, I see TweenMax being included even I do not use TweenMax anywhere.
I think I will leave TweenMax as you suggested so. It is only 113k anyway, smaller than most of my images lol.