opensuse leap 15.3 , installed in snapd , but doesnt work some qt problem
homepc@A4-C3-F0-3A-81-12:~> /snap/bin/riseup-vpn.launcher
No protocol specified
qt.qpa.xcb: could not connect to display :0
No protocol specified
qt.qpa.xcb: could not connect to display :0
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins:/snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/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 (from /snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins:/snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms), linuxfb (from /snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins:/snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms), minimal (from /snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins:/snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms), minimalegl (from /snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins:/snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms), offscreen (from /snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins:/snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms), vnc (from /snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins:/snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms), xcb (from /snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins:/snap/riseup-vpn/172/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms), eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.
SYSTEM is: OPENSUSE leap 15.3 kernel 5.3.18-59.37-default
installed using instructions https://snapcraft.io/install/riseup-vpn/opensuse#install