2160 vertical pixels is a difficult fit. * At 1x, UI elements are very small unless it is a very large monitor. * At 2X, you have 1080 addressable resolution

2160 vertical pixels is a difficult fit. * At 1x, UI elements are very small unless it is a very large monitor. * At 2X, you have 1080 addressable resolution which looks clunky at larger sizes. Fractional scaling can be blurry and can tax the video card more. * 5K with 2880/1440 is just enough better at most sizes.