Ran into same issue yesterday and have now clean installed 1909. Have not updated to latest NVIDIA drivers.
My specs:
Asus Sabertooth 990FX V1
16 GB RAM
AMD 8150
NVIDIA GTX 1080
Now Windows 10 1909; saw issue on Windows 10 2004 latest update w/ latest NV drivers as of this writing.
I work for NVIDIA and would like to see other's issues. Possibly I can assist with driving fixes from NVIDIA; however, the common denominator may be Windows 10 2004 latest updates.
Don't understand folks seeing the AppModel runtime errors on 1909, but I am watching event viewer's reports closely.
My symptoms included observing frame stutters in F.E.A.R. (yeah, old game) that I have not observed before. Then the game froze and I was greeted with the BIOS POST again. Fatal error for the GPU... not sure if this is related to something MS created that corrupts PCIe data, which would possibly hose the GPU completely.