TikTok - https://www.tiktok.com/@jeremyethier/video/71989368081330209...
YouTube - https://www.youtube.com/watch?v=XxWcirHIwVo
No idea what the deal is, but I'm guessing the YouTube algorithm is optimized for longer form videos so a lot of stuff ends up with just a lot of filler. The TikTok video is everything in the YouTube video, but with all the fluff removed. I've also used TikTok for foreign language lessons with excellent results, largely for the same reason. The videos tend to have a lot better information density than what YouTube optimizes for.
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Also, just watching that YouTube version again. Perhaps one of the best things is no more "If you like this video be sure to like, subscribe, and comment below. It really helps the channel out." An algorithm that relies on such a stupid, gameable, opt-in metric is always going to be inherently dysfunctional.
YouTube also has shorts, which it measures somewhat differently (as views as opposed to watch hours).
In particular I'm following UX (@designertom), CX and design channels as I'm still transitioning from backend to full stack development. Tech news, Producthunt-like content (especially in bleed edge areas like AI), art stuff, technical gardening (@transformativeadventures), science stuff (@hankgreen) and health/workout (@dr_idz).
The initial problem with tiktok is that you need quite a bit of time to train the algorithm to actually give you the stuff you want as the search and other discovery areas are really bad on purpose.
Also worth noting that Tiktok now supports long form content so some video can get pretty long. The player also has 2x video speed and good seeker so it's easy to roll through a lot of information very efficently!