I believe they use a different backend/storage. Different content shows up depending if you are searching from Tiktok or Douyin. Perhaps someone from Bytedance is curating select content from Tiktok for Douyin.
Either way, if I put a video on Tiktok it does not mean Chinese users on Douyin will see it.
Don’t forget China blocks tiktok too.
China doesn’t block Douyin
I believe they use a different backend/storage. Different content shows up depending if you are searching from Tiktok or Douyin. Perhaps someone from Bytedance is curating select content from Tiktok for Douyin.
Either way, if I put a video on Tiktok it does not mean Chinese users on Douyin will see it.
https://chinasocialmedia.net/tiktok-and-douyin-are-not-the-same/
IIRC China tried to stir up its internet users about the US blocking Tiktok and it fell flat because it’s blocked for them too.