systemd is not a dependency of GNOME: this page should instruct the user to look in the syslog, and then expland that if systemd is running, the logs will be redirected to the journal.
If you want to find more information about a problem in a session or want to fix it, consult the system log, which stores log data for your user session and applications.
The
On systemd-based systems, you can find the session log data in the
Determine your user ID (
View the journal logs for the user ID determined above:
For more information on the systemd journal, see the