

Replying from Sailfish.
It’s a mixed bag. VoLTE is required in Australia (no 2G or 3G anymore) and SFOS does support it so that’s good, but for some reason calls are stuck on speakerphone as the earpiece speaker doesn’t work. The GPS lock is quite slow. I also don’t have working cameras, and every time I unplug the charger the phone reboots.
On the plus side, the Android app support is really good (though I still use native SFOS apps wherever possible, but for banking etc. its handy). I have no stability problems, its pretty rock solid bar for the charger issue. I’ve daily driven it since about October last year, and honestly if I could make private phone calls it would be perfectly fine for me.
I will note that community developed ports are available for other devices with potentially better hardware compatibility, but the Android app support is not included as it’s proprietary (though Waydroid exists as an alternative) and VoLTE support is touch and go on other devices.
No, AuroraOS is the Russian fork of Sailfish.
Sailfish was in kahoots with the developers of Aurora, but they split ties when Putin spat the dummy at Ukraine.
Personally I wouldn’t buy a Jolla C2, but if you can get your hands on an Xperia 10 (working features vary by version, my 10 IV is not too bad but the 10 III is more polished) or a device supported by one of the better community ports, it’s worth a go.