TikTok is no more spyware than any other major internet ad platform, it just happens to use the knowledge it gains to provide you with content you actually want to watch (even if you don't know you do).
Google and Facebook collect the same sorts of information, they just don't use it as much to curate your experience.
Edit: to the downvoters, do you really think that Google and Facebook don't scan images you upload to them, and save drafts of things you type into their views: email or chat window or what have you? Do you really think they're not creating a complex profile of who you are as a person? That's how ads work. "Show this ad to 20-35 year olds in [Area] with [political affiliation] and a hobby of [thing]. You gain that knowledge by reading and tracking _everything_
Do you really think it's how ad networks figure out someone's marketable interests? Based on their draft email/chat messages? You obviously haven't tried doing something like this, but getting solid inferences from such tangential data is very hard, and it's not really a priority when the same users leave such a large trail from their browsing and searching anyways, visiting countless websites with promiscuous audience reporting, ad tracking cookies, etc. Why would someone bother to track someone's draft emails to figure out their political affiliation when the media they consume provides all the signal.
Google and Facebook collect the same sorts of information, they just don't use it as much to curate your experience.
Edit: to the downvoters, do you really think that Google and Facebook don't scan images you upload to them, and save drafts of things you type into their views: email or chat window or what have you? Do you really think they're not creating a complex profile of who you are as a person? That's how ads work. "Show this ad to 20-35 year olds in [Area] with [political affiliation] and a hobby of [thing]. You gain that knowledge by reading and tracking _everything_