[2022] Game crashes at the the first loading screen

Since the last update I cannot play AC: Valhalla anymore, because the game closes itself immediately. The last thing I see is the loading screen that appears right after the hint, that a multicultural team worked on this game.
I checked the local data, reinstalled the game, renamed and deleted the Ubisoft Cace, reinstalled ubisoft connect (as admin), updated, deleted and reinstalled my graphics card driver, checked windows updates, but nothing helped.
Any advice left what I could do?

My specs: Win 11
RTX 3060ti (asus)
Ryzen 7 5800x
32 GB DDR4 Ram @ 3600Mhz
PCIE 4.0 m.2 ssd 1000GB