Not sure either. My GPU is not listed under Display adapters in device manager. However, Microsoft Basic Display Adapter is listed instead.
I have also noticed the same thing in the User Manual for the MOBO. If this is the case, what other reasons could there be?
Have you tried reinstalling display drivers??
Also are there any unknown devices showing up in device manager that could be the wireless card??
Installing an m2 could have inadvertently changed the order the bios sees pci express devices.
Your gpu is clearly working, it's just disabled or removed the drivers for some reason.
I'm dubious about that info regarding m2 disabling sata ports.
I have a full size pro 4 and installing an nvme drive disables one of the small slot x 4 pci express ports.
Installing a sata m2 disables a couple of sata ports.
There is no correlation in an nvme diabaling sata ports at all, they run off completely different controllers.
I would try installing the wireless card in the bottom x16 pci express slot if nothing is showing in device manager, I personally think the uppermost x 4 slot (in line the the m2) has been physically disabled.