How RCS on iPhone Will Make Texting Better for Everyone

https://lemm.ee/post/30748957

How RCS on iPhone Will Make Texting Better for Everyone - lemm.ee

Does it have end to end encryption like iMessage or WhatsApp? No The winners and the losers are clear to me.
more like Signal, which is superior to Whatsapp snd iMessage

Isn’t WhatsApp using Signal protocol? Isn’t also iMessage using post quantum computing cryptography like Signal?

I know Signal is superior privacy wise, but is not that used

WhatsApp does use the Signal protocol, but unlike Signal only applies it to Messages, Calls and Status.

Your profile info, who you’re talking to, when you’re using the service, groups you’re in, channels you’re following and much more is left unprotected intentionally.

For instance, Signal sends your profile end-to-end-encrypted instead of leaving it freely accessible on servers.