Port of WhatsApp
If Facebook owns WhatsApp (pretty sure they do), then they should port it to the Quest platform. I don't use Messenger but I do use WhatsApp, and it would be the handiest thing ever. It has to be standalone, without the need for another device, because otherwise it kinda ruins the point of the Quest in the first place
Ben Dunk commented
Whatsapp uses TCP 443 (HTTPS) to pass the majority of the connection traffic but it also uses TCP 80 (HTTP). If voice is used, then ports 4244, 5222, 5223, 5228,50318, 59234 & 5242 are used. UDP Ports: 34784, 45395, 50318, 59234. You need to intercept this port on proxy and need to allow on Firewall .