LibreOffice is all over the world! Local communities attend events to meet users, get feedback from them, and encourage them to join our friendly and welcoming project. Anyone can get involved! We were recently in Sofia, Bulgaria, for instance: https://blog.documentfoundation.org/blog/2019/11/29/local-event-update-libreoffice-at-openfest-in-sofia-bulgaria/
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.