It might be possible to go for a slightly less nuclear option - using Guru3D's Display Driver Uninstaller (DDU) you might find that something changes that didn't when you did everything properly. Sometimes it does genuinely help.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 48GB
GPU: Radeon 7800 XT
CPU: AMD Ryzen 5900X
RAM: 48GB
GPU: Radeon 7800 XT