The CPU is decent, but it does not have any advantage over much cheaper and also faster x86 CPUs.
Similar NVIDIA GPUs can be obtained in laptops with discrete NVIDIA GPUs, but there the GPU has access only to a very small memory.
If you really want an NVIDIA GPU with up to 128 GB DRAM, and you are willing to pay a lot to fulfill this wish, then such a laptop can be a solution for you.
The successor of Strix Halo has been announced recently. The CPU is the same as before, just a little faster, but it is significantly faster than this NVIDIA/Mediatek CPU. What has changed is that it supports up to 192 GB of memory, 50% more than these NVIDIA computers.
However, the GPU of AMD is much smaller, with 2560 FP32 execution units, while this NVIDIA GPU will be available with up to 6144 FP32 execution units, but presumably at a much higher price than the AMD systems.