I think here pre-rendering means running React on the server (so the React render method called before the HTML hits the wire). So equivalent of if say Ruby On Rails rendered ERB but with React instead.
They call the pregenerated static HTML "SSG" or "Static Site Generation"
That should be as fast as hell: basically a CDN job.
I migrated an app from NextJS to Django to make it fast. Django because there was a lot of python code anyway to interop with. But any of the common MVC frameworks in any language/runtime that let you cache etc. will do. They are pretty mature.
The NextJS big killer for me was optimising page speed was nuts. You always get a fatty JS bundle even if the page is pre rendered or not.
Normally, yes. But there's a couple rendering modes with these frameworks. In this case, the rendering is most likely 'hybrid'. Some routes are statically pre-rendered, some are served via SSR. You'd need a JS server for the SSR ofc.
They call the pregenerated static HTML "SSG" or "Static Site Generation"
That should be as fast as hell: basically a CDN job.