LOL, nope I also didn’t see a link on the Zwift page to the Youtube content. I’d think those things might be best served being displayed pretty prominently on the company website. Keep them hosted on Youtube, but display them here.
And looking at the videos–they’re kinda messy. There are a lot of short vids about very specific issues (cassette type, for example). But there’s no clear starting point. Does the 1:37 “what you need to ride” video, with pics of devices, explain the companion app in enough detail (I don’t think so). Those vids are something of a shotgun approach. Links to two or three foundational videos on the Zwift site would help a lot, I think.