There are already a bunch of community maintained distributions - Unofficial alternative Joplin distributions - so if somebody created a PPA for Debian based systems or something via Pacstall then it will be added to the list but it is unlikely to have an "official" release.
It is also something I've noted here - Terminal app feedback/improvement ideas :
Non-node/npm distribution - Would be nice if this could be provided as a self contained binary with its dependencies included without needing node/npm.