Strapi ranking collection-types

Hey all
In am currently following some documentation to use a plugin to re order parts of the application (atleast that is my goal) to drag and drop and re order the content types

However I am a little confused the rank section. I placed a Number field type in each collection type with the Name rank and type being integer. Couple of questions

  1. Will this re order the frontend automatically on the application? For example, swapping a carousel with a banner (obviously depending where the data has been defined, lets go with a single page application).

  2. I do not understand the “hints” section. Can someone please explain?

Apologies if this sounds primitive