Is that dichotomy still present in Windows 10?
See, it's a confusing exercise to even figure out what their sub-platforms are supposed to be called. Apparently they are now "Universal Windows Platform (UWP) apps (formerly Windows Store apps and Metro-style apps)" [0]
Do they have access to the full feature set of DirectX etc.? Do they have support for multiple appearances, Dark Mode, etc.?
[0] https://en.wikipedia.org/wiki/Universal_Windows_Platform_app...