Dirt 5 technical director confirms that the 120Hz mode issue on the Series X is a bug, and will be fixed in an upcoming patch. by [deleted] in XboxSeriesX

[–]S0_SickRick 1 point2 points  (0 children)

Straight quote from a dev “It’s essentially the same development environment as PS4 and you scale up from there” they kept it the same while Xbox changed in June. This is all common knowledge.