My understanding is this is closer to something like Bootstrap but using Web Components (or material-ui if you want a react component set) than it is to React i

My understanding is this is closer to something like Bootstrap but using Web Components (or material-ui if you want a react component set) than it is to React itself. You'd probably still want to use React or similar ontop of it, but in the future we might get much lighter libraries covering that side of things.