Hidden Photo Album Lock Not Visible On macOS Monterey

Hi,

I have a hidden photo album in my library that I would like to lock. I have locked it on my iphone with no problem. When I go to my MacBook, the folder is not locked, nor do I see the padlock that people reference. I can hide the folder, but I would like to force a password on the folder as extra security.

I have done a bunch of research and cannot seem to find a way to get the padlock to appear.

Help please? Is it my OS? Setting? Something else?