alt Hacker News> Nobody gives a damn. What matters is that it works even on a potato.
It doesn't work on my computer, nor does it work on my phone when I'm traveling (different SIM), so I give a damn. WhatsApp, iMessage, Signal etc. do both. I really wish there was an open, federated standard (and no, RCS is neither), but until then, I'll use what actually works for me.
SMS just sucks, and I hate that it's become so ubiquitous an authentication method when it's not even secure.
You can rent a virtual mobile number in your home country and consult SMSs on the web or even redirect them to email. I have done this for years, using Twilio for 2€ a month. Can't say the UX is great but it certainly fixes the whole problem.
I've never understood why so many people still chain their identities to physical SIM or even eSIMs. It's so fragile.