What are Attributes used for in a WordPress Multisite?

When you edit a WordPress Multisite, there is this section of Attributes with multicheckboxes to select from, just curious what this actually does (if anything). I never needed to check "Public" checkbox in here for the site to be shown publicly. This is very strange to me and just wondering how WordPress uses this and if it’s used at all and how?

multisite-edit-settings