I think the mobile duopolies would be a lot less bad if there weren't so many compliance moats for cellular infrastructure. For example, I was trying to use the

I think the mobile duopolies would be a lot less bad if there weren't so many compliance moats for cellular infrastructure. For example, I was trying to use the pinephone for a while but ran into unreliability issues with SMS. It turned out that there was a known issue with the firmware for the cell modem in the phone, and maintainers claimed a working fix that they couldn't distribute because of a legal hurdle. A small problem that's likely been fixed by now, but aggregate a bunch of delays like this and it's no wonder there aren't yet strong FOSS alternatives to these big closed platforms yet