I'm not sure if it's more of a reaction or something that is around to stay for a bit. It's very much a Chinese app, The majority wasn't in English, but there are plenty of bilinguals. I went ahead and signed up and cruised around for a bit to see what's what.
There are a lot of welcome posts warning that it's ok to criticize the US government, but don't criticize the Chinese government. Which is interesting, but I doubt toktokers/Americans care about criticizing the Chinese government. There are some jokes about Taiwan that may bother some, and LGBTQ+ content and religion are basically no-gos. It does make you realize that there's not really a replacement for TikTok, you've got your further right spaces and your corporate friendly places, but a chunk of the free assembly Internet was just killed by the government.
It seems like it's kind of a Lady tips and tricks focused Instagram/Facebook/family-friendly from 1000 years ago type of thing, minus the advertising and thirst traps.
I think it absolutely won't fulfill the slightly subversive and free range aspects of the TikTok hole, but it seems like both the rednote and tiktok crowd are having some fun with interacting. The language barrier will probably be too great to last past the initial bubble of excitement.
From an outsider: the lack of ads/promotional material/sponsored content/internalized marketing is the most striking difference to me. It's super possible to underestimate how culturally ingrained and normalized that stuff is. The big caveat to that is: I don't speak Mandarin, so who knows what it's really like.
I'd honestly say: download and cruise around, it's pretty interesting tbh. It's a bit more wholesome, I guess because of socialism/the social focused culture (as opposed to US individualism/capitalist paradigm).
It's kind of a gas, and may be a neat opportunity to take a peak at a side of the world you don't get to see much. Who knows how long it'll last. Plus, get a chance to troll the US media/government.