I was binge watching a series when all of a sudden the screen distorted for a brief second.
When I minimized the player (VLC) all I saw was a grey screen. I could still see the minimized player (bottom left) and my (red) mouse pointer. I could run Task manager but starting Windows Explorer didn't do anything, neither did logging off and on again.
The only solution was to restart (ctrl+alt+del).
I've not experienced this with any OS until now with 11. Just to be sure I've set the 'Link State Power Management' of the 'PCI Express' to 'off'.
I bought something of Alibaba. It was cheap, and I was blinded by it, with no measurements on the page it should've been a dead giveaway. But <sigh> well ..fuck.