POSSE
indieweb.org
POSSE is an abbreviation for Publish (on your) Own Site, Syndicate Elsewhere, the practice of posting content on your own site first, then publishing copies or sharing links to third parties (like social media silos) with original post links to provide viewers a path to directly interacting with your content.

Might be a useful philosophy for those who still find some utility in posting to larger social medias (like Mastodon, etc), but still want to maintain an indie presence that is totally under their control.