Citrix Super Key in Gnome

Details

Gnome does not pass the Superkey ("Windows"-key) through to Citrix app in newer versions.

There is a setting which corrects this issue:

gsettings set org.gnome.mutter.wayland xwayland-grab-access-rules "['Wfica']"
gsettings set org.gnome.mutter.wayland xwayland-allow-grabs true

You can remoe this with setting with

gsettings reset org.gnome.mutter.wayland xwayland-grab-access-rules
gsettings reset org.gnome.mutter.wayland xwayland-allow-grabs