Arch wiki says I need set QT_QPA_PLATFORM=wayland-egl environment variable.
I added this EV to /etc/profile file, but when I run printenv
command in terminal QT_QPA_PLATFORM=wayland-egl is not listed.
“About” dialog of the qt5 apps says “window system xcb”.
So I think qt5 apps are not running under Wayland.