The developers of Signal are currently doing a user survey:
I told them that I really like the app but also that I would like:
a) Signal on @fdroidorg
b) a proper desktop client
c) no data stored in "secure enclaves"
Maybe you'd like to tell them, too?
All permissions are explained here:
Apart from localization and calendar, they are all used by major features of the app (camera for quickly snapping and sending pictures, contacts for contacts, microphone and camera for calls, storage for saving media sent and phone/sms to use signal to send standard sms, not just using data).
It works perfectly fine when most of them are deactivated, nothing forces you to activate them.
Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!