This happened with my LG “dumb” monitor!
2020 35WN65C. Nothing smart about it, yet I got a “install Mcafee” popup out of nowhere, to my utter horror.
Well. I’ll never buy another LG display as long as I live. Great marketing there, LG.
It was a good reminder though. Been too long since I took a chainsaw to my Windows partition.

Look at that. It’s purge o’clock.