As a business professional working in O365, the continued use of ribbon redesign to hide functionality and eat more screen is getting old. Knock it off. You make the gsuite seem much more attractive when you work to alienate your base.
The icons in the new ribbon look like where drawn for a child's video game.
Sometimes is confusing to understand in what part of the menu the user is. And the contextual menu that appears in the ribbon, when you click a visual, is barely visible because the font is to bright.
At least they should provide an option to use previous ribbon.