I am still waiting for the time I can actually <i>buy</i> a phone running one of these alternate OSes. Jolla has a shop, but shop.jolla.com is "not available in my country". (I can't even see what they're selling!)
I have used Sailfish OS as my only phone for 4 years now. The nice things are that it comes with a terminal emulator, you can get a (root) shell, call rpm, ip etc.<p>The not so nice thing is that the company obviously has no ressources to do anything about the browser. It is a seriously outdated Firefox.<p>The HW situation is not so bright at the moment. They still support the original models Jolla and Jolla C. But I guess all phones that have been used are showing serious signs of age by now.<p>Sony Xperia X is no longer sold. They are stuck at a 3.10 kernel and Android 4.4. I am typing this message on one.<p>Sony Xperia XZ solves these dead ends, but there seem still issues with the baseport, so the SW is only called beta.<p>For anybody considering Sailfish, if you are happy with F-Droid and proud of not running Google Play Services then this might be for you. Of course there are also real purists who don't even install the Android support.