Weirdly as someone who has used both styles heavily, I’d say the ribbon is more practical than the old toolbars. There’s more contextual grouping and more functional given the tabs and search, plus the modern flat design is less distracting, which is what I’d want from a productivity application. Also for me two rows of toolbars & a menu is about the same height as the ribbon anyway, and you can collapse the ribbon if you want to use the space
Everything about the Gingko tree is pretty cool