> Every single button is clearly visually a button and says exactly what it does. And each one has a little underline to indicate its keyboard shortcut. Isn’t that nice?

Something not mentioned here (that came from the Mac world as I understand it): everywhere that the text ends with an ellipsis, choosing that action will lead to further UI prompts. The actions not written this way can complete immediately when you click the button, as they already have enough information.