Good luck making anything complex by relying on a bespoke library for DOM updates. In contrast, React became a breath of fresh air, emulating the game development approach to rendering new frames: just literally rebuild the components.
Yes reactive UI is the only thing I can’t live without. React, Svelte, Vue are all fine. Trying to mirror state into and back from DOM manually is absolute disaster.
I really hope this becomes standardized at some point. Would be great to have consensus around.