
Expanding notifications automatically just because they popped up where the pointer is positioned distracts the user. It can also lead to a behavior that is surprising to the user by, for example, making the user's input switch to the notification's text entry box. It is possible to expand a notification that popped up over the pointer by mousing away from it and then mousing back in immediately. https://bugzilla.gnome.org/show_bug.cgi?id=617209