I think the commenter is trying to say that it's not something you need a Windows device for anymore.
I agree with that sentiment, but disagree about web-based Word, web-based Word is terrible, we often joke in my team that we need to start over if someone accidentally opens a SharePoint document in web-based Word.
Mobile OS it's Android,Desktop is Windows.
> office? everyone uses a web interface, even slack has a web interface
Huh? Microsoft Word on Windows native?
> companies that are wasting energy with inefficient machines
I bet your usage of cloud office burns more energy than an native app.