You can either use the Adrenalin uninstaller from AMD or use the DDU app from Guru3D. Once removed, re-install the chipset drivers (if needed) and then install the grahpics drivers for your specific card.
The option of last resort would be to re-install Windows if all else fails.
Just curious, what's the issue with the iGP of the 7950X3d? I have a 7800X3D and a 7900XT using the 23.12.1 drivers and haven't had any issues either with a monitor connected to the IGP or not.
Best of luck
Craig