Cubase 8 is (no longer) a pain to work with

I’m not so sure this will be a quick fix. Steinberg needs to go back to the drawing board and fundamentally re-think not only its approach to window management on the PC but also its cross-platform strategy. First and foremost, the company needs to follow widely accepted/adopted Windows UI guidelines (and more broadly, basic usability standards and conventions). And if this necessitates somewhat different features in the Mac and PC versions of Cubase, then so be it. Company’s that truly care about user experience take this approach - they leverage what is best on each platform.