This is unfortunate for women in the US, many of whom were using TikTok to raise consciousness of 4B, a protest movement originating in South Korea that calls for women to fight widespread societal misogyny and boycott men. It went viral on TikTok in the US after Trump's win in November and has been steadily increasing in reach and impact since.
Hopefully this movement will continue on other social media. Though unfortunately none are quite as light on censorship as TikTok is for feminist voices, often unfairly framing these as "hate".
TikTok actively censored videos containing the word "rape", "assault", and "sex", preventing women on the app from honestly talking about their negative experiences with men. I do not think it's a great loss for Feminism to see the app delisted and it's users migrate elsewhere
That isn't a problem in reality as everyone just uses euphemisms which everyone else understands but TikTok doesn't censor. It's been this way for years, we got used to it.
4B was pretty limited in South Korea according to Wikipedia and anecdotally the same appears to be true in US. Anecdotally I see it shared mostly by women who are dating or actively in relationships.
Hopefully this movement will continue on other social media. Though unfortunately none are quite as light on censorship as TikTok is for feminist voices, often unfairly framing these as "hate".