Short videos work best when you want to show something that doesn't really need a lot of explanation, or justify a full length video. For instance, in the gamin

Short videos work best when you want to show something that doesn't really need a lot of explanation, or justify a full length video. For instance, in the gaming world, a random glitch you encountered that sends your character falling through the floor, or an AI bug that causes an enemy or NPC to get stuck/repeat the same actions in a loop, or a really close finish at the end of a race could be great short material. It's amusing to watch out of context, but doesn't provide enough material for a full length production. Other examples in other genres could be a meme based on a particular funny clip, outtakes/bloopers from a longer stream or video, part of a TV show or film that's somewhat iconic and can be enjoyed out of context, etc. Could be treated like an ad for the longer production, in the same way Nintendo thought their mobile games were a gateway product to their console ones.