Screw WhatsApp. That's what you should be getting away from anyway. And install CopperheadOS on your phone. It doesn't use any Google services. It even has a list of its defaul connections made by the OS: https://copperhead.co/android/docs/usage_guide#default-conne...

Unfortunately, support for Nexus devices will soon be gone and the Pixel 2 devices with pre-installed CopperheadOS are quite pricey for private use.