75hz monitors are still a thing. They are pretty common in the 1440p and ultrawide models, as well as many lower end Freesync displays. Xbox One S and X already support higher refresh rates and VRR, so I don't have to stick with PC.75 and 144 hz are Pc centric refreshes. Well 75hz monitors don't even exist anymore do they? Tv's are either 60 or 120hz with various optional interpolation methods for faking anything higher.
You'll only get multiples of 30fps on console and for good reason. If ultra high refresh rates are your thing just stick with PC.