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.
Native desktop version.
First being able to use the service first-class on the desktop without registering with phone app first. Second is using native desktop technologies for the app, as Signal currently uses Electron so it is basically a website running in separate Chromium web browser without tabs.