It's the same explaining a fully kitted out backend (Routing, caching, authentication, etc) and then going "see, it's so complicated!". Well duh, it's a big and complex system.

I think the issue with valtio is that there's no central store. As far as I can see, you'll end up having these proxies scattered around your codebase or you'll end up re-creating Redux and centralizing them.

Also, I have ironically never heard of valtio.

Also, you can easily wrap valtio with:

  const createStore = (name, store) => {
    if (window.stores[name]) throw 'store already exists'
    window.stores = {
       ...window.stores
       [name]: valtio(store)
    }
  }