The hour long video on a thing that covered most of the bases and edge cases gets cut down into a 30 minute (likely 15 minute) YT video with important information missing.
The 15 min YouTube video turns into two 30 second TikToks that speed run through 70% of what you need to know, sure, but is the 30% they didn't cover (or know about!) actually important? Who knows!
Example: I was cleaning our jacuzzi bath tub the other day. The previous owners had never cleaned it, so black gunk came out of the jets.
A YouTube video (that was actually a TikTok!) suggested unscrewing the jet nozzles (amongst other things), which she demonstrated as a really simple "just unscrew them" sort of deal.
As it happens, not every jet nozzle is meant to be removed! And not every jet nozzle should be removed! Also, it is really hard to get replacement nozzles after you crack one because it was affixed to the housing!