I’m using for quite some time now this app, that’s doing exactly that & on the top of it has support for Signal, didn’t know that they implemented this into wa.
try setting up your private dns to: adblock.doh.mullvad.net
Firefox, Signal, OrganicMaps
… & gold endorsement of whatsapp cofounder Brian Acton saying : “I am a sellout. I acknowledge that.” & donating $50M for Signal Foundation