No tray-icon in Wayland-session
I use Gnome-Shell (3.28.3) on Manjaro Linux. When I use X-session - i have a tray-icon, but when i use Wayland-session, i don't have any tray-icon (other apps have icon-tray).
I have extensions installed: Topicons plus and (K)StatusNotifierItem/AppIndicator Support.