I don’t think there is anything malicious that could be done to Google and Apple any way, other than exposing the exact details of their invasive actions, publicly. But in the process, why not spoof everything about yourself, on your own phone. If they don’t want bogus information then perhaps they should stop the spying.
I see Google and Apple like the company in the movie, “The Circle”. In that movie, the company is built on a model that believes that all information should be public and that privacy is immoral. Tom Hanks plays a Steve Jobs kind of character that leads the company and has a cult-like following of employees that he often addresses on stage the same way Steve Jobs used to do. And he has a lot of his own secrets. In one of the final scenes, he sits on stage and is politely and properly ambushed by all of his dirty secrets being dumped out to the world via the internet while he watches it all happening on the big screen in front of a large audience of his followers. In keeping with his policy of speaking honestly and openly, he casually and calmly says to himself (with the world and his large in-person audience watching) “I think I’me f…ked here”. We can only hope that happens to Google and Apple and others like them.