Yeah, checking on IA the snapcraft page, before Sep there was no notice (one was added early Sep) this was an unofficial package and the link just below the package name was/is link to Signal homepage with tooltip saying developer. Think the issue was the lack of such notice before. Because on Flathub the equivalent package exists fine: https://flathub.org/apps/details/org.signal.Signal
Signal has historically taken issue with 3rd parties distributing binaries and calling them Signal (understandably so). Most prominently with another serial trademark violator, F-Droid
