"We kill people based on metadata."
-Michael Hayden, former NSA and CIA director
You still can't opt out of metadata collection for either Meta or WhatsApp, which Meta bought and now surveils.
The Hayden quote above is to illustrate that you can learn an enormous amount about a person by just collecting their metadata, which is what Meta/ Facebook forces upon you if you use any of their services.
https://www.eff.org/deeplinks/2023/12/meta-announces-end-end-encryption-default-messenger