After an almost successful in-place upgrade from Qubes OS 4.2 to 4.3, some shortcuts were missing, so I ran:
for qube in $( qvm-ls --class TemplateVM --fields NAME --raw-data ); do
qvm-start --skip-if-running "$qube" && qvm-sync-appmenus "$qube"
qvm-shutdown "$qube"
done