Understanding SSG and when to use it (Next14 + app router)

[stephen-ply]

Summary

Help me understand when I shouldn't use SSG

Additional information

Context: we are using Next.js 14 + App Router
Right now, we have several Page routes that look like:

export default function SomePage() {
  // do stuff with cookies() API. page data depends on logged in user
}

export const generateStaticParams() {
  // generate params to pre-render page at build time

}

Essentially, we are doing SSG, but I am skeptical of any benefit it brings us.

Am I correct to think that SSG here doesn't really do anything since
the pages look different depending on who is requesting it?
Also we do not care about SEO on these pages.

Thanks

[icyJoseph]

Indeed, I think, even dynamicParams set to false, doesn't do anything when cookies or any of the so called, dynamic opt-ins is at play.