Discussion on: In defense of the modern web

it's widely understood that if you want 60fps animation, you will likely have to bypass the React update cycle and do things in a more imperative fashion (indeed, this is what libraries like react-spring do)

Probably aside from the article, which I largely agree with, but I think this is an odd point to try and make. This is true of any component library that has overhead above imperative JS. But there's nothing stopping you from using CSS in React, which is all Svelte does anyway.