[2022] Every 3D Element blurred

Right click on ck3.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, Vsync off, refresh rate 60.

THEN unload GeForce Experience before starting the game.


If those don't help:
DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/CK3/pdx_settings.txt .
From your Documents/Paradox Interactive/CK3/logs/ folder, attach here system.log , error.log  

I don't like what I see here:

+++ WER1 +++:
Fehlerbucket 1871967639502291527, Typ 4
Ereignisname: APPCRASH
Antwort: Nicht verfügbar
CAB-Datei-ID: 0

Problemsignatur:
P1: nvcontainer.exe
P2: 1.37.3103.4323
P3: 621dbda6
P4: _OverClockingNvc.dll

and your nVidia driver is not quite up to date, so let's do a clean update:

- uninstall that driver and all other nVidia software
- reboot
- install October 2022 https://www.nvidia.com/Download/index.aspx?lang=en-us
- reboot again

Is that any better?


If not this is probably a side-effect of the unusual resolution you are using:

"fullscreen_resolution"={
version=0
value="1632x918"
}

Can you try the one you use on your Windows desktop 1920 x 1080 please?  

Can I get new copies of all those files please.  

We see some mod errors in there, you have definitely disabled ALL mods while we work on this?

I see the refresh rate is not capped as 60 as I suggested before, please implement that.

And you may as well update that nVidia driver to Dec 2022 https://www.nvidia.com/Download/index.aspx?lang=en-us , and make sure you unload GeForce Experience before starting the game. Any better?  

What if you swap from DX11 to Vulkan, is that any better?  

I don't know then. Is there any way you can swap your monitor, video card, or both into another machine to see if the problem follows them?

Or vice versa, swap ok ones from elsewhere into this machine?