Yes I was going to point to the Fomenko chonology too. I believe that has adherents in some minor Russian nationalist circles:

> In September 2020, major Russian politician and academician of the Russian Academy of Sciences Sergey Glazyev publicly proposed Fomenko's New Chronology as a "reliable support for the formation of modern ideology that consolidates Russian society"

And related to https://en.wikipedia.org/wiki/Tartarian_Empire

"A reliable support for the formation of modern ideology"? That pretty much screams that any connection with the truth is... optional. It's not being considered on grounds of truth, but on grounds of being good for ideology.