In the menubar of most LibO apps there is in Insert -> Shapes the same layout. I would move there in addition the elements - ines & arrow - connectors - callout (maybe)
In my LibreOffice Fresh installation I get Insert > Shape > Lines > * Insert > Shape > Arrow > * Insert > Shape > Callout > * and a connector is a special line. So I don't see need for action.
sorry but - lines & arrow - connectors - callout are complete different things than shape lines, arrow and callout, cause all three items aren't "simple shapes" they are connected to an shape which is a big difference and way more usefull than draw an shape -> arrow.
If they are different things, wouldn't they confuse the users if they are in the same sub menu ?
I can't follow which sub-menus should be moved to insert > shape > ... Can you please explain, Andreas? Also the initial comment and comment 2 seem to contradict themselves.
This topic is in state NEEDINFO for some time. Andreas, please comment or resolve as fixed/wontfix.