I know that TikTok isn't operated in China but If I were TikTok dev, I'll think something like: adopt AWS/Azure to make possible to share code between Douyin and TikTok (just possibility, for future).
I also suspect that Google Cloud's learning resource in Chinese is fewer than AWS/Azure.
> Google Cloud's learning resource in Chinese is fewer than AWS/Azure
Yes, that's true. But it's not like there are a lot of learning resources in Chinese for AWS/Azure, either. At least compared to Aliyun (Alibaba Cloud). So likely it doesn't matter.
Its China version Douyin also uses a mix of Aliyun and their own infrastructure, so ByteDance likely have plenty of experience operating in multi/hybrid cloud environment.