Thanks for taking the time to read this, Konig! You are 100% correct, this article is entirely OS-centric. For some context behind that decision — it was originally created for //build to be placed in a lounge alongside UWP apps. Because of this, we made the hard call to focus primarily on Windows. There have been so many incredible Office innovations, thanks to hardworking designers like Jensen Harris. I would love to, one day, get to know the Office design story more deeply.