Signal's definition of "reproducible" meant for quite a while "download this binary docker image and build Signal inside of it". I don't know if that has changed since.
Signal rejects F-Droid for a different reason, though: They only want to distribute through channels where they get download statistics and control update rollouts.
Signal rejects F-Droid for a different reason, though: They only want to distribute through channels where they get download statistics and control update rollouts.