For Backdrop, we should build the functionality of simplified_menu_admin module into core. It combines the list of links with the title and description fields, so we can reduce the menu administration forms from 2 into one.

Here's how it would look (with the already ported simplified_menu_admin module):

backdrop-primary_navigation_menu_admin_page_with_simplified_menu_admin_installed

Here's how the respective admin page looks like in vanilla D8 after https://www.drupal.org/node/663946 got merged:

d8-edit_menu-main_navigation

GitHub Link: 
https://github.com/backdrop/backdrop-issues/issues/475
GitHub Issue #: 
475