Wordpress Polylang: How do different and the same slug in a multilingual site affect SEO?

Question

Google

Now I am developing a multilingual site on Wordpress using the Polylang plugin.
My question is, how different and the same slug can affect SEO?
How will be better?
site.com/news и site.com/ru/newsor site.com/novyny и site.com/ru/novosti
Or does it matter, since the markup will contain hreflang attributes with links to pages?

Answer 1

I would say it doesn't matter. In my opinion, the main thing is that with multilingualism there would be no parameter?lang=LOCALE

Answer 2

No way