Could anybody explain it, why GNOME folks decided to hide the Shutdown and especially Restart buttons/options from a user so well? Is it especially dangerous to use them nowadays? Or GNOME folks assume people do not shutdown/restart their computers anymore?
What? You pull down the user menu, click "shutdown," and a box opens which offers suspend-restart-cancel-shutdown buttons. How hidden is that?
It is much better hidden than that. You pull down the user menu, there's no such thing as Shutdown - there's Suspend. Shutdown only appears when you hold the alt button. So yes, it's carefully hidden.