KDE

Worldwide free open source software community which creates all kinds of popular useful projects such as the Plasma desktop, Kdenlive, Krita and lots more.

Fediverse address (main):
@kde@floss.social

Fediverse address (videos):
@kde_community@tube.kockatoo.org

Fediverse address (conference videos):
@kde@conf.tube

Fediverse address (Spanish language community):
@kde_espana@floss.social

LibreOffice

The most popular free open source office suite, it includes a word processor, spreadsheet, presentation software etc. It’s very widely used by businesses, governments, organisations and individuals, and is available for Linux, Mac and Windows.

Fediverse address:
@libreoffice@fosstodon.org

There are also user groups on the Fediverse:

Fediverse address (in Spanish):
@LibreOfficeEs@mastodon.social

Fediverse address (in French):
@LaMouetteODF@framapiaf.org