If tiktok was about ease of use they would give you a way to go to next movie of the same author that you are currently watching on "for you page".
Swipe left and it brings you to that author's profile with all their videos. Seems easy to me?
Nope. It brings you to the most recent videos they published not to the one you were just watching.
A funny side note here is that ~2018 Facebook was crushing it in terms of minutes/day/user due to auto play videos with good next-video recommendations. Then they decided explicitly to disable auto play. They even switched to a different internal metric to explicitly discourage optimizing for this type of engagement.
That being said, most of the big winners in the auto play era were from professional studios or had some kind of financial backing. TikTok seems to have a lot more viral amateur content. Good for them
I personally used TikTok for a bit (only as a consumer) but had to cut it from my phone. It was too addictive. I found myself using the app for longer than I wanted.
While TikTok is entertaining I don't really miss it now that I've removed it. I feel lots of videos there lack substance.