Yeah, Vine (now defunct) is probably the originator. YouTube has Shorts, Instagram has Stories, and it’s the same in WhatsApp. Snapchat has one, Facebook has one, X has one (or used to? I’m not sure)… They are a part of most social media at this point, almost as ubiquitous as posts, shares, and links. Of course, TikTok is king right now their main innovation is inclusion of licensed music and removing most of the interface so that one video just flows into the next.