Home page for the entire suite (in French) with some screenshots: https://lasuite.numerique.gouv.fr/
Code bases are on GitHub and they use English there: https://github.com/suitenumerique/
Dev handbook (in English): https://suitenumerique.gitbook.io/handbook
Not French and I can't say I personally tried deploying any of them, but I've been admiring their efforts from afar for a while now.
Now they just need to change the name so it's not so obviously French, and invite collaboration from the other large EU countries. I wonder how many Dutch or German will think of "La Suite Numerique" as an EU-wide office suite.
Why not? Plenty of French people speak English at a native level.