It can be made, but requires some work. In the end you can end up with a very good device, though.
For example:
AsiaRF AW7916-NPD WiFi 6e mPCIe module
Banana Pi BPI-R64 main board
BPI-64 Acryllic case with antenna holes drilled
8 x IPEX pigtails, 8 x Antenna of choice
Getting OpenWrt on the device is as easy as copying an image to a microsd card.
There are other devices you can put that wifi module into, but the above is probably one of the easiest.