Following that procedure, pretty much to the letter,
running DDU twice in Safe mode,
installing Nvidia 465.89 before re-enabling Internet...
.. still crashes browser window on first YouTube video after restarts.
* can no longer launch NVIDIA Control Panel from the notification area icon.
- actually, it can launch, but only before first videos after restarts.
* in Device Manager, driver reports as version 22.214.171.12489, which has known problems, and is far from their latest,
but was the version nvidia.com offered for RTX 1080 Ti