[2022] [Windows 11] Game freezing after running for a short time

Right click on eu4.exe , properties, compatibility. Tick "disable fullScreen optimisations" untick every other box in that dialog, Apply and exit.
Then in the launcher Game Settings menu, select fullScreen display mode.

Then edit the file Documents/paradox/eu4/settings.txt to say:

Vsync=off, refreshRate=60.


Is that any better?  

MachopPower69 said: And what if going into EU4.exe -> Properties -> Compatibility isn't possible because Compat doesn't exist as an option?

It does exist; most likely you have right clicked on a folder or desktop shortcut, not eu4.exe itself.