[crowcroft]

I don't understand the 'Nextjs is good for SEO' hype. I think it's better to frame it as Nextjs isn't bad for SEO. Whether a site loads without client side rendering is a pretty binary thing.

If you're using Nextjs to get a high level of rich interactivity then your SEO issues aren't about CSR vs SSR anyway though. As you point it it's just bundle size and site speed, and URL structure that end up causing a negative impact. Nextjs doesn't fix that.