The French government has ordered all its officials to use an open source chat solution developed by France, named TChap https://www.aa.com.tr/en/europe/france-makes-state-owned-messaging-app-tchap-mandatory-for-public-officials/3675837

i see you. let me know your feedback about it. Its most obvious drawback right now, as I use it, is that it will not get many user names.