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...
It’s just a matter of following a lot of interesting people since it has no “recommendation algorithm” or whatever. But that can be hard I guess.
I am also more into the reddit/lemmy approach of social media where you subscribe to a community rather than following individual people so idk.