I have a similar question about “no-access” but within Departments.
As soon as I add a user to a department, he gets full access to all Libraries within this department.
Is there a way to block access to certain libraries for certain users in a Department?
What I did as a workaround: add only the admin to the Department and then use old-school sharing of individual Libraries to users. But I guess this is not the purpose of Departments…