I have yet to see how the defaults of windows are more ergonomic. I am also not aware that humans have significantly changed as a species since the 80s, so all the the ergonomic considerations are the same.

Besides, it completely misses the point - ergonomics are often about convenience and knowing what to expect. A zoo of frameworks and UI paradigms is a most terrible outcome with any kind of HIG. Microsoft is not able to keep a consistent UI paradigm for their own software - what a shining beacon of chaos they are.