Here's an interesting observation:
If you use an adapter for the Wi-Fi module and insert it into the first m2 slot, which is from the processor, then the OS starts only after it is turned off. Rebooting leads to panic at the moment of switching the video mode. (When the screen goes blank and the video card should be connected, and then the login window to the system.)
The choice of this slot is due to the fact that the radiator of the lower three slots is common, and the height of the adapter + module is higher than the height of any SSD. And, if the radiator is completely removed, it will come out ugly and the SSD without cooling.
Do you think it can be fixed? I did not find the PCI-e mode switching in the BIOS. Perhaps switching to an earlier version would solve the problem, if it was caused by it at all.