What happen to items with unique permission, if we should to have their list inherit its permission from the site rather than having unique permission

Question

I am reading this official link inside Microsoft docs @ https://docs.microsoft.com/en-us/sharepoint/what-is-permissions-inheritance .. and the link mentioned the following sentence:-

When a user shares or stops sharing an item that contains other items with broken inheritance, a one-time push down of that permission addition or removal is sent to all child items, even those with broken inheritance

but based on my test if I have a list which has unique permissions and this list contain items with unique permissions also >> then if I chose that the list should inherit the permissions from its site rather than having unique permission >> then this action will not push down to the items.. where the items will still have unique permissions.. so is the above sentence wrong? or i am missing something?

Answer 1

When you assign unique permissions to the list, the items in the list will also automatically inherit the unique permissions of the list.

If the list inherits the permissions from site collection and does not have unique permissions. Unless you grant unique permissions to the specific item, items will automatically inherit the permissions of the site collection.

=========================== Updated Answer =================================

This push down action is only for permissions, and does not mean that anything I do on the list will also be transferred to the item.

For example, restoring the inheritance operation of the list (Delete unique permissions) does not turn the item from the "unique permissions" state to the "inherited" state