I see, in your broad and experienced mind, document editors don't have users, permissions, and the whole document management itself, comments on lines/threads, reactions on comments

Seriously, theyre all as cookie cutter perfect usecase for Django as you can get, but I guess you haven't actually thought about the domain and just wanted to take a dumb on other devs with intern-to-junior level insights

And in this case, as would be obvious from thinking about it, the only part it's not suited for is the live syncing of the text edit on the frontend, which is one one small part of the whole.

Now go check if they're doing it or you're just suggesting from the dunning kruger symptom.