From that exceptions log the crash is in your Nvidia driver.
- uninstall it with this tool
https://developer.nvidia.com/cleanup-tool
- reboot
- install June 2025
https://www.nvidia.com/Download/index.aspx?lang=en-us
- reboot again
- If GeForce Experience or the Nvidia app are running after doing that, exit them before starting the game.
- switch back to DX11
- Right click on victoria3.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, cap refresh rate at 60.
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.
IF dxdiag.txt fails to attach here, rename it to dxdiag.log , or zip it up.
Please attach here your Documents/Paradox Interactive/Victoria3/pdx_settings.json .
From your Documents/Paradox Interactive/Victoria3/logs/ folder, attach here system.log , error.log
From your Documents/Paradox Interactive/Victoria3/crashes/ folder, attach here the latest (only!) exceptions.txt