I think that the point of the project is more:

“Content over form” so you don’t really need all the formatting options of something like Word when you are just trying to write meeting notes.

They are definitely trending more towards a wiki, but it is still early days for this whole experiment. Though, many of the municipalities in the French gov are using it for their day to day work so it is clearly useful in some capacity. I don’t have numbers, but it’s definitely respectable