Very imaginative! It feels like a sci fi Backrooms with elements of Annihilation with creative additions and evocative writing.
Are the mundane office items in Cubespace the infection from outside vectors you were referring to?
Some of the descriptions were a little too obscure or esoteric for me. I don't know who Louis Quail or Steven Ahlgren are, and it took me a moment to understand what you meant by "hypnogogic transference," for example. I think some of the description of the cube from the front panel could be moved inside as well, and that space could be used for a broader overview of the module.
Would only someone with six fingers on one hand be able to initiate the transference outside of slickware, or does it just mean six fingers total?