@NikeBG, alright. I will be quoting a few German traits from a comical book on the Czechs (https://books.google.com.br/books?hl=pt-BR&id=K6YmBAAAQBAJ&q=germans#v=onepage&q=German&f=false):
-Sense of comradeship, orderliness, dutifulness, obedience.
This page also shows quite a few German traits: https://en.wikipedia.org/wiki/Prussian_virtues
And let’s not forget the aforementioned links on the Lewis Model. Linear-activitity is a distinctly Germanic characteristic, and it can be seen applied to both Germany and other Germanic and Germanized nations.
I agree that not all regions have stereotypes, but of all, why not Silesia and Kashubia, given their history? Either way, it doesn’t hurt asking.