1.2.2 Captions (Prerecorded)
You recorded a video that also has sound, congratulations. You would've blown the minds of anyone in the early 1900s. But if you want to blow the minds of people today with your oh-so-amazing content, maybe don't fucking discriminate against Deaf and disabled folks. Add some fucking captions.
You don't need to do this if your uncaptioned shit is itself an alternative for info in text, like an article. Otherwise known as "Having. A. Fucking. Text. Alternative." So this is the same fucking criterion as the audio section of 1.2.1, except split into two criteria for twice the fun. Also apparently people who would learn better from a video but also need captions don't really matter.
Moral of the story: fuck WCAG, add captions. All you have to do is upload that shit to youtube, wait for them to auto-generate captions, then sit down with a nice glass of your favorite poison and fix all their shitty mistakes because AI captions are still crap.