"The PC never had hardware scrolling. Carmack got Commander Keen to work via code ninjitsu, and it was still a bit janky."

PCs did have hardware scrolling, in IBM EGA and VGA and forward. Carmack got Keen to work via hardware scrolling. (Keen 4-6 used full dblbuffered hardware scroll, Keen 1-3 used a rudimentary hardware scroll with a delta repaint method)

The reason hardware scrolling was rarely used on PC is that clone card manufacturers flooded the market with cards that botched the exact semantics of the hw scroll implementation - so implementing a compatible hw scroll required accommodating code very closely to multiple vendors' undocumented quirks (see Vogons forum on Keen scrolling where it is extensively researched)

Given that the comparison perspective is so constrained to be console focused, would be best to leave PCs out. (Voodoo and "OpenGL Extensions" sections are factually imprecise, and do poor justice to actual history)