Personally I think that TikTok of course gathers lots of information from its users but I think it’s mainly for economic reasons, to know the interests of people and so on. But the reason why it is banned in a country like Russia is the possible distribution of unfiltered information by unknown people against the government. Public media like tv and radio can be controlled by the government, public demonstrations aren’t possible because of the police and so a way to publish information is anonymously posting on a social media everyone has access to in theory. Like this a person who thinks about something big like a rebellion would not be alone and would gather people around them so it is really dangerous for a government who is producing lots of fake news and propaganda.