Because of Gnome 3′s deep hardware integration, if Fedora indicates that the Suspend is known to work on your machine, it shows the Suspend option in the User Menu instead of the Power Off option.
But for us who want the Power Off option available all the time, and don’t want to Log Out first before shutting-down the machine, there’s the alternative-status-menu Gnome extension which replaces the default Gnome 3 User Menu with one that includes both Suspend and Power Off options.
Execute the following as root to install the Gnome extension.
yum install gnome-shell-extensions-alternative-status-menu
Then refresh Gnome shell by pressing
r, then press
Enter. After the refresh, your User Menu should now like something similar to this one:
Note: This particular extension adds the Hibernate option, too!