Hi everybody,
My company own one of these too. Same problem with fog which fail on nvme disk not found.
I just installed Fedora 29 which works correctly on it (i’m currently writing with it), i will try to compile a kernel with the fog config to add to my grub configuration and see what happens with the F29 userlands. Years i didn’t compiled a kernel, hope to do it quick ;).
If there is anything you want me to do, ask me, i will keep the computer with me until a solution is found, and can do whatever needed to help resolve this issue.