It doesn't automatically start up at boot unless you add it on startup programs manually. Even though, sometimes it starts blank so you have to kill the progress and relaunch the app several times. Whatever I have tried out, it'll never start minimized at background which is annoying. It synchronizes well, but only text, not all of the media. In LM 21.3, the Flatpack v 23.2.0.3 I installed, in light mode, user backgrounds are missing. You can change conversation background in dark mode only.
Doesn't always synchronize the messages (especially in groups) - but after application restart it's OK. So create yourself a "Restart Viber" script ;-)
The settings "start viber automatically" and "launch viber in the background" are disabled and cannot be turned on. Nobody on the entire freaking internet knows how to fix this. As a workaround, I use "startup applications" of Mint. The result is, viber starts as a window at boot. I have to minimize it EVERY time, along with some other spoiled apps. ALL of them flatpaks
Not alwais - very rarelly started and I do not know when? I restart many times Linux LMDE5 and install Viber on several kinds, include flat pack. Apear for some seconds in System monitor process and after that disapear?
Don't work text formatting (markdown) according official documentation. Bot buttons too big by default.
Besides not supporting some of the characters of the Greek alphabet, it simply stopped working on the 25th of March. Uninstalling and reinstalling does not seem to solve the problem.
Viber on Mint? Very nice and plays without bugs. I always searching for Viber at the official site and now its on software manager. Good WOrk!
Very good on LM 19.1 Cinnamon! There are not white screen or another troubles on my system. Thanks for this software!!!