I agree that the current instability of the existing libre messaging apps is
not helping when it comes to broad adoption. For the average user, work in
progress is only work in progress and I can only note with regret that Jami
is now sleeping unused on my laptop. It does not mean that I won't be giving
it a try by and then.
Since the Telegram client is libre and available for GNU/Linux, I am using it
for the time being. Of course, nothing being perfect, video calls are not
possible (for the time being) on Telegram. What's more, I cannot use
end-to-end encryption so I have to trust the Telegram people: the "Secret
chat" option with E2E enctyption is only available on the mobile clients,
unfortunately.
Signal and Wire having their inherent limitations too, I still hope Jami will
soon get to a smooth cross-platform user experience.