Hi there @Smirftsch.
Re: 5G, I do not have a 5G service to test with and it seems we expect results to vary by country / area (read from this post). 5G was reported to work in Germany on the basically identical Murray port (further details). 4G & VoLTE however are both fully functional.
Re: AAS, fingers crossed we hear something overnight, Jolla should address it in the community meeting about 10 hours from now.
Re: current status / fully working phone, my current project is fingerprint support, no promises yet but I’m getting closer every day. Hope to have it shipped in a few weeks. Other outstanding issues I’m also still working on, no ETA yet but they haven’t been forgotten. Bluetooth audio in calls particularly is something I want to sort out sooner rather than later, but the device is certainly at a state currently where it can be used as a primary phone if you do not require AAS.