I can comment on the variant without dGPU. I have a non-xpak dayfarer V2, but I think the dimensions are the same.
It does fit in the dedicated laptop compartment, though quite tight. With the cush case, it is possible to fit it in, but it is very, very tight. To the point where I’m afraid I might break the zipper while closing it, though I haven’t so far. Definitely takes way more time than it normally should, to get it in/out.
I might just start using the main compartment sleeve, or put it in the dedicated one without cush case.