2. It's mobile

3. It's Linux

It did not reliably make phone calls *for me*. There are plenty of people on forums and Reddit who use it.

My Pinephone seems to still have an issue with crashing randomly all the time.

But then vendors acted like assholes, and labelled phones as "open" without any possibility to get the source, let alone develop anything for their devices due to lack of working build tools.