YouTube incentivizes creators to make artificially long videos, resulting in a huge amount of filler. So you get a lot of videos where you can skip the first 20%+ and not miss anything. The content is buried and spread out.
1 minute of content surrounded by 9 minutes of filler.
TikTok removed those 9 minutes, so it feels very refreshing in that respect. There's no incentive to create filler - just the opposite.
Of course the downside is that there's only so much you can fit into a 60 second package, so you're not going to get a deep dive into anything. But for the kind of content that can be compressed like that, TikTok wins big time.