I have noticed that the DisplayPort channels of the M.2 connector are used by Intel Tri-Band Wireless-AC 17265.
Bellow are some pictures that helped me figure out the pinout.
What are the DisplayPort channels used for ?
Will the module's WiGig adapter, still work if the DP channels are not connected ?
Are DP channels used to offload data off PCIe1 when a display device is attached over WiGig ?
Will display devices attached over WiGig still work if only the PCIe1 is connected (no DP) ?
I would try them myself, but I can't do it yet and I'm trying to some research in advance.
As much as we would like to help, this type of information is only available to developers and original equipment manufacturers (OEMs), as it is considered priviledged.
Our best recommendation will be to contact your computer manufacturer.
If your OEM is unable to provide you with an answer, there is always the option for you to test the adapter on your own. While it's very likely that it will either work or or not, there's also the possibility that it may damage your adapter, computer, or both. So please proceed with caution, knowing that you're doing so at your own risk.