There are big wishes for Signal to adopt the perfectly working Flatpak.
This will make Signal show up in the verified subsection of Flathub, it will improve trust, allow a central place for bug reports and support and ease maintenance.
Flatpak works on pretty much all Distros, including the ones covered by their current “Linux = Ubuntu” .deb repo.
To make a good decision, we need to have some statistics about who uses which package.
That would’ve been great to keep, and the Signal team thinks so too, but they were kinda forced to remove it by Google: https://community.signalusers.org/t/signal-blog-removing-sms-support-from-signal-android-very-soon/47954/57