An insider view: there is a major push in a lot of state related team & department at the moment to go “sovereign tooling”. With alternatives for a lot of stuff.

This is not just a corner of the universe, most of us are switching tools at the moment, the trend is definitively big.

My point is that you don't achieve that by having the state start developing internal tools (unless it's highly sensitive stuff like for the intelligence services or military) for standard office applications. The French state is already massively oversized...