UnityHub 2.2 won't run on arch linux

I've downloaded the latest version of UnityHub (2.2.2) using the appImage format and I did not manage to start the application. When I run it through the appImage Launcher, nothing occurs.
When stared from a terminal, same issue, no error , nothing occurs.

It seems that I've the same issue that one described in this post
https://forum.unity.com/threads/how-to-fix-broken-unityhub-2-2-2-on-linux.798675/#post-5310414

But the solution does not work for me.
So I can't start unity 2019.x because it requires UnityHub to activate my license.
I've installed and started successfully the 2018.3 version instead.

My system is Arch Linux, with Gnome Desktop.
All is up to date

 

Update: I've managed to start unity 2019 without UnityHub.
The Solution is in this post.