On TikTok you largely just get more of what you've already engaged with. If you're using the platform for porn you're going to get a lot of it. If you like and engage with scientific/political content you'll rarely, if ever, see a video of someone dancing.
edit:
It's anecdotal but having taken a look at TikTok's web feed: https://www.tiktok.com/foryou. The content there was less sexual than the purportedly sanitised Douyin.
https://douyin.com/
On TikTok you largely just get more of what you've already engaged with. If you're using the platform for porn you're going to get a lot of it. If you like and engage with scientific/political content you'll rarely, if ever, see a video of someone dancing.
edit:
It's anecdotal but having taken a look at TikTok's web feed: https://www.tiktok.com/foryou. The content there was less sexual than the purportedly sanitised Douyin.