Design

Google slides: Left navigation improving [Update in Feb 18,2024]

Microcopy:  https://docs.google.com/document/d/1tOEQYw_LxzAP4fkyJOyM50OS-ok2wpukBoxFhe_da-c/edit#heading=h.cval15w7zf7b 

After migrating to the PF4, the left menu become to 3 layers, which contains submenus instead of sections separator.

Before migrating, there are few sub menus and most sections that separate different things
 
After migrating, It creates submenus with 3 levels , some layers only have one item. 
The user now has to open 3 submenus to get to the page.
In Foreman they add a search to the navigation to be easier to browse:https://fb1z3p.csb.app/

Suggestion： It is better to re-organize the left menu content structure of the side menu.