@futurebird BTW here in Brazil there's a proposed definition of social media that doesn't include Mastodon and most of the Fediverse, and I think it is great from an operational perspective
It would probably be easier to translate the definition from here:

Comitê Gestor da Internet no Brasil divulga 10 princípios para regulação das redes sociais
Documento reúne diretrizes para orientar eventual marco regulatório das redes sociais no Brasil, com foco em democracia, direitos fundamentais e transparência.
/i.s3.glbimg.com/v1/AUTH_59edd422c0c84a879bd37670ae4f538a/internal_photos/bs/2021/H/w/YbA657S3aYVfC0P9wboQ/g1-favicon.png)
G1 (g1.globo.com)