This DLC was released in late September 2022, and many Polish guides or wiki pages were being heavily edited and finalized in early November to reflect the new Italian focus trees and aircraft designer mechanics [1, 2].
The text you are looking for likely comes from a on a Polish gaming site like Steam Workshop, GRY-Online , or PPE.pl , specifically updated on November 7, 2022. Hearts of Iron IVData edycji: 7-11-2022, 15:53P...
A massive new focus tree with paths for the Monarchy, Mussolini, or a Communist revolution. This DLC was released in late September 2022,
Highly popular mods like "Polish Plus" or "Kaiserreich" (Polish translation) often have specific edit timestamps in their changelogs on the Steam Workshop. specifically updated on November 7