Is Jolyne in the SBR universe, if so before or after part 8
What I understand from the ending of part 6, is that the universe that we see in the end is not the SBR universe. It's another different Universe.

Reason why I think so:

The Jotaro we see in the end of part 6 doesn't exist in the SBR universe because we see the SBR version of Jotaro in part 8 as


   Kyo Nijimura