yeah thing is you turn this off, assuming it's not "secretly still on", but if local contact tracing is advanced enough, they can still monitor the public wifi you connect to, cell towers, and if your location is on that too. They'd use the same methods police use to track criminals, which is why if you're REALLY worried about this shit, put your phone on airplane mode and when you go someplace you don't want to be tracked get a case that you can put the phone in that surrounds it all the way and shields it from being able to communicate. Something that blocks all radio transmissions from the phone. (of course then you can't use internet or anything like that)