it's wechat. you really need it in china. it's practically impossible to stay in touch with most people if you don't have it. a phone that can't run wechat is pretty useless.
hmm, i forgot about those. but i wonder if you really needed wechat and if it wasn't possible to scan them with the government provided app that tracks your healthcode too. i think offering wechat support was more out of convenience, and not to push people to use wechat.