A lot of the office stuff can be handled by templates that allow only editing relevant parts - there's not really a need for majority of office workers to have access (and needing to know) all the features of an Office suite.

Over two decades ago I was tasked doing a pilot with IBMs Document Connect for Lotus Notes - it was clear that it pretty much was an Alpha they've been selling us, but it was showing promise. In the end it went nowhere, probably because not too many other companies were interested in trying out a different approach at handling their documents.