Everyone over at The Verge is drooling all over this but I don't get it. From The Verge's screenshots it looks incredibly bland, not sexy as hell as one comment put it. I remember Apple catching hell for too much white in their UI but that second screenshot of Microsoft's mail app is white on white on white. Maybe I'm missing something but I don't see what the big deal is here or why this is considered a gorgeous UI.
https://www.theverge.com/2017/5/11/15625970/microsoft-fluent-design-desktop-email-app-ui
https://www.theverge.com/2017/5/11/15625970/microsoft-fluent-design-desktop-email-app-ui