Thanks for your help mate.
Unfortunately, I’ve found this issue while trying to open the settings for the MSFS 2020 in the NVIDIA Control Panel as you mentioned.
Flightsimulator.exe will not open from the Windowsapp folder. Permission error
I don’t know if you downloaded it through Steam or the MS Store, but in my case I got it from the MS Store and there are is a “permission” problem as you can see in the previous link when it comes to adding the .exe in the NVIDIA control panel.
Anyways, I will compare and try your in-game settings if it works for me.