Not sure about TikTok, but in this video and YouTube in general, you can just directly go to where most people go, and this way (I'm always a bit amazed that this actually works) you can generally see the actually important points of the video.
TikTok caps video length. Indeed, the #1 issue with youtube is the videos are way too long. (Also the ads, and comments, recommendations, search, etc,) but video length is certainly why I haven't bothered to watch anything on youtube for a long time (edit: logged in. I still watch clips people send me ofc in the group chat ofc). I'd delete my account if it weren't tied to my email for some inexplicable reason.
Edit: Wait... Does everybody see this? It's not on all videos, but it's on most for me, but my girlfriend says she never noticed it. I can't find any articles claiming it was ever fully rolled out, so maybe it's a premium feature? Here's the vid if anybody wants to check:
