> (Also, for whatever reason, I see a lot less angry shouting on TT, whereas twitter feels increasingly like the 2 minutes of hate from 1984)

There is an oddly specific reason for this: just about everything that might be controversial is likely filtered away into bubbles.

People will spell gay as gae, use accent marks and spaces, all sorts of things because not doing so will kill your upload pretty much. Tiktok will remove users from being featured if they look abnormal or ugly or low quality, afaik.