Reducing CSS bundle size 70% by cutting the class names and using scope isolation
Gajus Kuizinas

I agree that developers should use shorter class names, but I’m not sure if it’s worth using very short, meaningless class names (e.g. Google), because it may hurt readability and may make it more problematic to maintain the code. A few Kb (or msecs) vs maintainability — the second one always wins.