there is a focus bug, only on XperiaIII, and only in camera1 api (in SFOS, and also in stock android and AOSP/etc), that makes everyday picture taking unfeasible. it affects jolla-camera, harbour-advanced-camera, and android camera apps like OpenCamera that allow you to use camera1.
focus requires something like a full second of absolute stability in the frame. if you have even the tiniest bit of pixel churn, it will not focus. (and of course, even in manual-focus mode, the camera model must focus before taking a picture)
this means that for most users, in the real world, taking the picture is delayed, sometimes for minutes, even with steady hands and a group of people standing very still.
edit: so, to be clear, i am using the term “broken” to mean “unusably buggy” and not, say, “app segfaults on open”. i do, however, assert that “broken” applies to all SFOS camera apps. it does NOT apply to stopmotion, though, because your use case is very different from real world casual photography.