This behavior dates back all the way to the original gnome-shell
release, and it did make sense at the time:
- we were first to make notifications persistent instead of
closing them after a timeout; apps were therefore used to
treat notifications as fire-and-forget instead of closing
them when no longer relevant
- neither web notifications not portals did exist yet, so the
D-Bus API was only used directly, instead of as a backend
for other APIs; as a result, focusing the app was more likely
than not to put the source of the event that the user was
notified about into view
Nowadays both persistent notifications and web notifications
are wide-spread, so the original reasons no longer apply.
This change helps web notifications in particular, as it reduces
the differences between XDG and portal-based implementations.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2332>