>Is their shit an Android-based system?
I mean if you want to use your smartphone like a smartphone you need Android support. If my phone doesn't have Signal, banking (sadly), and FB Messenger with friends (sadly), then it is completely useless to me no matter how amazing the hardware is. The OS is Linux with PostmarketOS and I think as well with Sailfish (Jolla), but both have their own ways of emulating Android if need to be (and will be needed at some point). Postmarket runs KDE/GNOME/some gtk phone specific thing, and I think is based on Alpine. Sailfish is a mostly proprietary OS with a UI written in your favorite Qt ;).
>That phone was such shit that the main menu was laggy. I got the thing specifically to hack on the OS and it was boot-locked.
Moon bought one and it died in a drawer.