Maximum allocation of 96GB to VRAM on the 128GB configuration, but your point still stands. This desktop was absolutely designed almost specifically for ML-enthusiasts, and if you wanna run a game on it you can too. Describing it as a "gaming PC" is totally missing the mark.
EDIT: it has been pointed out that the 96GB limit is a Windows limitation, so wouldn't affect any serious ML-enthusiast
Oh, interesting! That's the first I'm hearing of being able to configure more in Linux, seems like anyone taking ML seriously would be using Linux anyway.