What is the problem you are trying to solve?
Now that private pages are deprecated, to make a page private, you need to create a page and then change its permissions (or viceversa if you have guest’s view permission deactivated by default). Just like it was before in web contents. But it is error-prone and people forget to set the correct permission.
What is your proposed solution?
I think it would be helpfull to make it easier to select a page’s permissions when you create it, as it’s been done in web contents.