I have always been curious about this. Did you get them to use other services or did they stubbornly refuse and you just accepted it? I am talking using Chrome, using Windows, using social media like Tiktok or Facebook or Instagram, etc. Bonus points if you have kids because that is even more work in the privacy realm
Yeah I’m not super happy with Signal’s level of openness, but I also wouldn’t call it proprietary. It is open source and I could run my own server if I really wanted to, but that would just make it harder.
At the time we were moving from a walled garden to one of 3 encrypted OSS solutions, and I had all of them until we naturally coalesced on one.
SMS at the time didn’t work due to not having cell service, and while we “have” RCS now to solve that issue, I don’t know anyone who uses it.