GeForce Experience sneaky full screen window permanently at top level makes monitor rude #2
Description
I have seemingly the same problem as you originally had, and disabling the Geforce overlay fixes it, but for some reason this doesn't.
According to WindowInvestigator there are 2 identical NVIDIA Share.exe windows with the only difference being the HWND, 0x00000000000102DA vs 0x00000000000102E0
HWND: 0x00000000000102DA
PID: 11216 TID: 11220 "C:\Program Files\NVIDIA Corporation\NVIDIA GeForce Experience\NVIDIA Share.exe"
Class name: "CEF-OSC-WIDGET"
Extended styles: 0x08080080
Styles: 0x94000000
Window rect: (0, 0, 1920, 1080)
Client rect: (0, 0, 1920, 1080)
Placement: showCmd 1 minPosition (-1, -1) maxPosition (-1, -1), normalPosition (0, 0, 1920, 1080)
Text: "NVIDIA GeForce Overlay"
Shell managed: FALSE
Shell frame: FALSE
Overpanning: FALSE
Band: 1
Has "NonRudeHWND" property: FALSE
Has "LivePreviewWindow" property: FALSE
Has "TreatAsDesktopFullscreen" property: FALSE
Is window: TRUE
DWM is cloaked: 0x00000000
Is iconic: FALSE
Is visible: TRUE