Bro, the chinese market is a whole different world and it confuses a lot of people, the main social networks there are wechat, douyin the local tiktok, kuaishou, and rednote, wechat is the super app with a billion users that combines everything, douyin and Kuaishou are the queens of short videos and live sales, rednote is like a pinterest for urban youth with money, ideal for fashion and beauty.
Regarding whether chinese traffic generates international sales, the answer is yes, but not in the way you expect, the chinese buy on chinese platforms, they don't go to your website from abroad, the business is in selling to them from china using their own networks, not in bringing their traffic to your Western store, what is growing, however, is using success in china as a showcase for other asian markets, what works on Douyin is often replicated on international tiktok, so, yes, there is an opportunity, but the strategy is to sell to the chinese in china, not to bring chinese people to your US website.