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...
But why would people on Mastodon for example use English instead of their first language? That’s the point. Mastodon works different from Lemmy. When I am simply writing a sort of online diary about my research project, local politics or whatever, why would it be in English?!