I can only complain about some minor font rendering issues and the lack of child window rendering [0] which is frequently used in programs like these.
Once child window rendering is fixed, I will actually be considering ditching windows entirely and go wine-only.
[0] https://www.winehq.org/pipermail/wine-devel/2019-July/148639...
In the pre Windows Vista Era, the operating system handed control over to the App to draw itself on screen. In Vista they moved to a model, like OSX, where each App drew to a buffer and the OS composited those buffers. That's part of the reason why Vista was hot steaming garbage because they were still working that transition out.
It would be interesting to see the difference in performance between running the native version and the emulated version.