This is certainly a growing trend which was first started amongst end-users themselves, and slowly we've seen a few news media outlets also following suite. So far, only a very few government agencies have actually followed. Coming to mind are also The Netherlands. What is attractive for many organisations and agencies on Mastodon, is that...
This is great to see. Honestly I think software that governments invest into should be exclusively open source. It is paid for by the public’s money after all, so it should be offered back to the public.