Have you ever tried blocking WhatsApp from your router?(ruky.me)
ruky.me
Have you ever tried blocking WhatsApp from your router?
https://ruky.me/2021/01/23/have-you-ever-tried-blocking-whatsapp-you-probably-cant/
https://ruky.me/2021/01/23/have-you-ever-tried-blocking-whatsapp-you-probably-cant/
1) Use tcpdump to inspect WhatsApp packets and get an idea of what they look like
2) Use iptables or nftables to set up rules to block them.