> Douyin (The Chinese Tiktok version) limits users under 14 to 40 minutes per day and primarily serves educational content, while TikTok's algorithm outside China optimizes for maximum engagement regardless of content quality or user wellbeing.

This isn't true, at least not for adults' accounts. I've watched my girlfriend use it and the content was exactly what she watched on TikTok, mostly dumb skits, singing, dancing, just all in Chinese instead of half in Chinese. It also never kicked her off for watching too long.

I was told a similar story about Xiaohongshu, where it was supposedly an app for Chinese citizens to read Mao's quotations (through the lens of Xi Jinping Thought) to prove their loyalty. Then I saw it for real and it's literally Chinese Instagram.