I agree with you. However, with Spectacle I am able to have a really nice workflow with my window management.

Spectacle is nice, but may I direct you toward hammerspoon (general purpose OS X workflow 'wrangler'), e.g window management: http://thume.ca/2016/07/16/advanced-hackery-with-the-hammers...

Have you explored the multitouch gestures for all this? I work on a 40" 4K monitor and I can't live without OSX's window management exactly for that reason. Windows wants you to fullscreen everything, while OSX has nice little touches like making the windows subtly magnetic or letting you resize symmetrically by holding alt.

Not to mention OSX is the only OS where you can drag the file icon out of a window's title bar to do stuff with it (eg. upload a file you have open) or right clicking the title to see the folder structure it resides in.

All these little affordances exactly where they need to be, and invisible when you don't need them. In my experience OSX is designed with a degree of consistency unheard of elsewhere, and that's why it gets accused of being unusable: people keep looking for the crutches you need on other platforms instead of just interacting directly.