I deleted everything Google and switched to iOS a few years ago so Google would have less of my data. Now they are going to get detailed location, activity, and sleep history for all of those years anyway. You really can't win can you. I bet there is no option to download my data and nuke what they have before this happens either.
The only winning move anymore is to not play. Don’t sign up for any service that collects and stores detailed information like that. If that’s even possible these days. Unfortunately the “people who actually care about their data” market is too small to justify making something like a privacy-oriented Fitbit.
You are the product and almost every organization you interact with is trying to get a piece of the action. Some of the worst offenders selling you out are your state and local governments.