The org.freedesktop.login1.power-off-multiple-sessions policy is granted by default for local users on the current session. That's currently intended, I think it's generally a good thing on a desktop. However, it should indeed warn you about it, that's the gnome-session part.
The org.freedesktop .login1. power-off- multiple- sessions policy is granted by default for local users on the current session. That's currently intended, I think it's generally a good thing on a desktop. However, it should indeed warn you about it, that's the gnome-session part.