Are you using LucidLogic MVP Virtu software?
If you are, try uninstalling it. Also uninstall the Intel display driver and the AMD drivers. Use DDU to remove the remnants of the Intel drivers and AMD drivers. Go into the BIOS and select PCI Express for Primary Graphics Adapter under Advanced>Northbridge Configuration>Primary Graphics Adapter. Also disable IGPU Multi-Monitor, Render Standby, and Deep Render Standby.
Then boot back into Windows and re-install your AMD display drivers.
Hopefully that sorts it out. Could be the two drivers are tripping over each other during your login.
I followed your instructions to the letter and I can't tell if it has made it worse or better, I have another video to show what happens, I removed the intel drivers and reinstalled the new beta driver, the older driver, and the current driver. All to no avail.
Also to add to this, I have never installed anything under the name 'LucidLogic MVP Virtu' so I didn't uninstall anything under that name.