As an aside knowing most companies working in embedded technologies usually work in, or have strong aspects in Linux. Why then are Linux drivers so difficult to come by? Lack of customers seems unlikely since they mostly have everything ready, right? Or is it cost cutting to avoid lengthy QA on another platform? That would be easy to sidestep by giving a no-warranty driver version?
If I had to guess why it didn’t have split screen was the open world. My guess it streaming assets from two different places on a huge map was costly to do twice (memory wise). Atleast when it was designed/launched.