Cloudflare Pages - does it use Argo and also store static assets on every edge node?

I had two questions about hosting assets via Cloudflare Pages:

  1. Does Pages use Argo to optimize serving static assets faster?
  2. Does the entire bundle of assets in Pages get copied to every Cloudflare node on the edge, or just to a single node + adaptively to other nodes?

I don’t understand the above two, although I’d assume yes for both (1) and (2) because Pages is native to Cloudflare, and not reliant on any origin.

cc @KentonVarda