Thank you for the heads-up! I admit I relied on hearsay on how RCS works, I just assumed it had E2EE. Actually, I did almost send personally identifiable information over RCS, but decided not to, I'll take that as divine intervention protecting me (lol). Thanks again.
Addendum: Today was also my first ever message received via RCS. I know the person through WhatsApp, but he messaged me via, just, phone number. I have an Android, but what does he have? I dunno, but it works, and it's awesome. I sent text, image, audio, video, read receipts with a device whose corporation is probably competing with the one of my phone.
Ahh, this is what the engineers had imagined 50+ years ago, and we're living it.
I was convinced this was by Mickey7