The trick is to use open source version tracking and a simpler text editor. I suspect that markdown in a gui editor could do everything that actually needs doing.
Every employee with a reasonably recent office suite can produce a high quality PDF of whatever they are producing.
I actually have done such things. It’s not that bad - the process of review is the painful part.
Nobody has the skillsets to manage latex source code in a collaborative environment. I actually did a pilot a few years ago with Markdown and GitHub to collaborate on a large report for a multi-organization project. We quickly abandoned it for Word/Sharepoint and it worked fine.
The only practical exceptions I can think of are typesetting for publishing and bill drafting. Both are narrow use cases with specialized staff and tools. I definitely see where having a system output LaTeX could be useful for those use cases. But not the the collaborative aspects.
I'm talking about what comes before. Most don't have the luxury of a publishing department producing a clean pdf from what's no doubt a handful of Word inputs. Apart from horrendous formatting issues introduced by incompetency and variety of Word versions (including limited mobile/online versions), the purpose would be astronomically better change integration when 10 people concurrently review for starters. If you've never had to integrate changes from a handful of people for 100+ page documents, praise your deity.