This is some research it would be cool to see: was TikTok adoption measurably slowed in countries where net neutrality violations were common?

For example, it's the norm across Africa for providers to offer plans with radically lower per-GB costs for WhatsApp, Youtube, and other mainstream apps, as a way to price discriminate and charge a premium to tech and white collar workers who need access to the actual Internet. In such countries you would expect TikTok adoption to happen more slowly than expected.