If someone know how to run steam version Prototype 2 on PC ( windows 11 ) .

Share information XD

The way I got it to work for me (Windows 10, but same issue as Windows 11), was to go into Task Manager, click on the Details tab, find steam.exe and right click on it then choose Set Affinity.

Then on the popup you'll want to untick any Core Numbers above 11. Once that's done, click okay and when you go to launch Prototype 2 through Steam, it should start working fine.