This is why I DO NOT turn that crap on.
Don’t put apps on your phone(s) (yes I know, some are preloaded). If you are an Apple user, get an iPad for that instead and don’t travel with it turned on.
I personally and not worried about being tracked by the government (although the idea of it generally speaking is very disappointing), but I don’t trust app developers, and I wouldn’t use tiktok of you paid me to.
Anybody that is too stupid to know that their smartphone receives messages from the apps that they sign up for, is too stupid to use a smartphone.
Maybe setting the cell phone VPN to Vietnam or China will confuse them?