I ... don't think there's a time limit on TikToks unless you mean that 60 minutes is a time limit. Are you thinking of Vine?
If you want people to watch your content there's definitely a time limit. I don't mean anything imposed by the platform; I just mean if people aren't interested within 3 seconds, they're scrolling to the next video in their feed.
That's a pretty new thing though, in 2020 it was 1 min I believe, and most people skipped after 15-30s
Then it got increased to 3 min and now 10/60 min
Seconds - that's all the time I give something. If it looks draggy I will skip ahead to like halfway thru the video and if the person isn't in the middle of explaining something that they have clearly spent half the time extrapolating, that's it. They get no more time.
I often turn on subtitles and watch at 2x speed.
I prefer the transcript 100% of the time to video.