The EU has joined Mastodon
social.network.europa.eu
social.network.europa.eu
Main reason I haven’t done so yet is copyright concerns but this content is presumably safe in that regard
(And the state of Baden-Württemberg has its own instance for some reason: https://xn--baw-joa.social/about)
Looks like it could use some more contributions with commit access, but it works well as it is!
Edit: But to be fair to the backlog of pull requests, the developer is not located in the most pleasant of countries at the moment, so be patient with them :)