

I haven’t had luck or even tried. Mostly, people won’t know what RCS implies. But there are still important differences that Signal brings to the table. Signal is not merely E2EE on communications. Signal is actually a combination of many privacy protocols to ensure private communications, where E2EE is only one of them. They have a lot of protocol innovations in key exchanges, group management, metadata storage, contact discovery, etc. RCS does not guarantee E2EE, it needs to be implemented by the ISPs, so using it you don’t really know if the other end’s ISP supports it, so the RCS negotiation will downgrade to the common denominator.
They treat this as if e2ee was the privacy grail but it’s only marketing to fool people believing they’re protected.
The actual contents of the messages aren’t as important for privacy. It’s the Metadata and a ton of other measures rhay signal implements in their family of protocols.
Talking about e2ee and call it private shows ignorance in what privacy entails.