[allears]

Anecdotal evidence from myself: Although I've been using Word for many decades, I've never had much "muscle memory" in terms of accessing features. It was always a case of learning which pulldown menu held the required function.

When the accursed ribbon came along, "discoverability" went out the window. Functions were grouped according to some strange MS logic I could never understand, and it takes me twice as long to format a page as it used to. Now, I basically just use Word for text entry, and if I want an elegant format, I use a graphic design app like Illustrator.

Judging from what I've read online, you may be the only person who actually likes the ribbon.