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https://grapheneos.org/usage#sandboxed-google-play-configuration
If your having unsatisfying location, go through this guide to turn on Google everything for location.
You will need to grant “Allow all the time” Location access to Google Play services along with the Nearby Devices permission for it to have all the access it needs. You need to use the “Google Location Accuracy” link from the sandboxed Google Play configuration menu to access the Google Play services menu for opting into their network location service, otherwise this is all pointless
If someone has already said what I was going to say, I upvote and don’t comment.