When I start the app on Ubuntu 22.04.2 LTS I see this:
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/home/opt/AmneziaVPN/client/plugins//platforms:" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: eglfs, offscreen, wayland-egl, linuxfb, minimal, wayland, minimalegl, xcb.
Aborted (core dumped)
When I start the app on Ubuntu 22.04.2 LTS I see this:
Found the solution on askubuntu:
So I run
apt install libxcb-cursor0
and it now starts. I guess there is a bug in the app installer...