Very interesting device. It would be perfect with some dGPU, Arc A770M ideally (wouldn't go crazy up in price but 16 GB VRAM is still there, for more gaming power just use an eGPU).
While cramming a current-gen Core i9 CPU into a PC that can fit in the palm of your hand is an impressive feat, it remains to be seen how well Geekom's Mini IT13 can handle the turbo frequencies of Intel's top-tier SKU.