Question about sumbission steps

Hello, thanks for the clarification.
I just received a message where my product has passed the *initial technical review, *and now they are moving to the final product review.
As far as I understood, there are 3 steps, right?

  1. Initial processing of the submission (I don’t know what they check, maybe the product page and other basic product info).
  2. Initial technical review, that should be a general check that everything works as expected.
  3. Final product review, maybe they check additional things more in deep, but still don’t know

I assume that the technical review checklist is for the point 2, so what about the point 3?
Cheers!