Does dynamic content loading affect SEO?

Question

Search Engine Optimization

Does the dynamic loading of the header, footer, multi-page site affect seo?

Answer 1

Yes.
Google SSR.

Answer 2

Doesn't affect at all
The search engine can't know how the server renders your page, dynamically, statically, or otherwise

Answer 3

If you have some SEO-oriented elements there, then it affects negatively, it’s not very clear why the hell loading them dynamically is bad for both the user and search engines

Answer 4

Only if in terms of download speed, but you yourself can easily check this. GTMetrix, PageSpeed ​​and many other similar services to help you.