Intel launched the Kaby Lake-G platform in January of this year. When first announced, it caused shock waves as it confirmed that Intel had made a deal with AMD to integrate one of the latter's graphics processors on a multi-chip module (MCM) with Kaby Lake. The weird thing is that almost nobody has jumped on this product, there are very few systems out there with Kaby Lake-G.
At the moment, there have been only four major products announced with Intel's Kaby Lake-G. This includes the Dell XPS 15 9575, HP Spectre x360 15 (2018), Intel Hades Canyon NUC, and the Chuwi HiGame mini PC. The latter two aren't laptops and the HP notebook isn't shipping yet. That leaves Dell as the sole provider of Kaby Lake-G laptops.
NotebookCheck did some digging and heard from three sources close to laptop makers that NVIDIA is responsible for keeping Kaby Lake-G at bay. Basically, it appears NVIDIA's GeForce Partner Program (GPP) forced other laptop makers to keep quiet about Kaby Lake-G:
This leaves HP and Dell as the only two notable manufacturers with overt Kaby Lake-G plans who also happen to be allegedly backing away from Nvidia GPP. Other major manufacturers like MSI, Zotac, Gigabyte, Asus, Lenovo, Acer, and others have been oddly silent about Kaby Lake-G. For a product born from an inconceivable partnership between two of the largest PC rivals in history, Kaby Lake-G should have received more attention or at least comments from OEMs everywhere.
Whether it's true remains to be seen, but it's odd that three of NotebookCheck's independent sources confirm the story.