Like in draw.io - you can snap to key points, to a point on the outline, to the object(object’s center). As for now there may be a situation where it is hard to know which arrows go where if there’s too many of them pointing to one place.
I understand. Not sure this helps with your use case, but it’s at least somewhat relevant: Dynamic connection line anchoring for canvas groups
Also, it would be a cool feature to be able to add a custom anchor point that would be placed somewhere on an object and won’t move relative to it. It would be very useful when connecting lines to a point on a picture.