[Users] The notification plugin's "command to execute" command is not executed

[Paul]

On Wed, 14 Dec 2022 14:34:31 +0200
<mahlamytsike at gmail.com> wrote: 

> Copying it to the terminal command line will work.

For information, /usr/bin/notify-send "Test !" on the command line does
absolutely nothing here

with regards

Paul