The nVidia GPU is MUXless -- all display output passes through the Intel GPU on its way to the display. This is the way the system is designed -- there is no direct output to the display from the nVIdia GPU.  
I had update to the windows 11. NVidia adapter is present in device manager and working properly in the games. I try to increase refresh  rate and in the advance setting  windows don't recognize second adapter (NVidia 1660 Ti) just only one from Intel as you can see in the attached photo. Any idea? [IMAGE]
G3 3590 windows 11 NVidia adapter