Microsoft's DPI scaling is terrible. So much stuff is ugly and/or broken. (My favorite example is DPI scaling bugs that used to exist in the DPI control panel itself: https://i.imgur.com/zi80IhG.png) Mixed DPI is a huge pain because windows change size when you drag them around. WPF was supposed to fix all this, way back when that was the future. Apple's approach is much simpler and generally works better though it certainly has its downsides too.