Submenus all share the same container which is positioned absolutely. There's no good way I can find to take a dropdown and align it to the parent nav item.
The only decent workaround is what Webstudio uses on the website which is left aligning them container and making the width large.
actually I am gonna need to try and see if this can be used with a narrow menu and the right position, maybe it should and we only failed to implement it correctly