A user hit this after installing the new Arch/CachyOS package (triple-c#34):
icon missing in the app menu, taskbar, and titlebar alike, with no error
in the app's own log. Root cause has nothing to do with the app or its
packaging — GNOME/KDE cache the installed-app list and resolved icons in
the shell process's memory at startup, and Wayland has no equivalent to
X11's soft shell-restart trick to force a live reload. Logging out and
back in fixed it for them.
shadow-test