Unfortunately the download is taking its time - which kind of base model is it using and what techniques (if any) are they using to offload weights?
Since the demo is 35 GB, my first assumption was it's bundling a ~13B parameter model, but if the requirement is 8 GB VRAM, I assume they're either doing quantization on the user's end or offloading part of the model to the CPU.
(I also hope that Windows 11 is a suggested and not a hard requirement)