Social media short form video

I saw an article from 12/20/24 about including a short-form video in a social post, however when I spoke with a representative, they said it wasn't a thing anymore...? Confused to say the least. Does anyone know if the short-form video in social post will be happening (rolled-out) across all accounts? https://knowledgebase.constantcontact.com/email-digital-marketing/articles/KnowledgeBase/53861-Use-a-social-post-to-share-a-short-form-video?lang=en_US