Since GNU Social and Mastodon share the same protocol we don't see the need to maintain two accounts on the same network. I recommend all Mastodon, GNU Social and Friendica users to follow quitter.no/fsfe for now. /bs
For now this one and the one on quitter are the "official" channels in the free socwebs. You can find one on Mastodon but we currently discussing what to do with it. Save choice for now is to follow one of the "officials".