A lot of the time, rust rewrites are more for devs, than users. Rust code is just easier to maintain (in the long-run 😉) and harder to make buggy. But some times the apps do just run faster when compiled with Rust.
TikTok really doesn’t perform that much more data collection on their apps than Google does, if at all more. Sure, data going into the Chinese government might be a bit more concerning, but I’d say most if your argument is dangerously close to Chinese fear-mongering.
This looks crazy cool… one of those projects that I really wish I had a use for so I could try it lol