For some users, the one minute timeout for automatic confirmation of the various end session dialogs might be too short, or stressful.
Making the timeout configurable does not seem as such a complex change, so, do we want to make that happen? And, where, in Gnome shell, would we to expose it?
Note that Gnome shell already ignores the timeout send by gnome session in upstream, swe might want to create a backport request/whatever approach we choose for this.
This is the downstream bug for https://gitlab.gnome.org/GNOME/gnome-session/-/issues/151