The Default Moodle Manager role allows assigned users to access and edit courses, as well as perform some administrative-level tasks related to courses, users, note settings, and so on.
Unlike the role of Administrator, the role of manager is a "real role", whose abilities you can change, but which is "similar" to that of Administrator --but much safer to use-- because of its broad powers by default. As a normal role, such as Course Builder or Teacher, although the Manager role has almost very many default capabilities, you can change this role if you wish.
--The way permission checks work in Moodle code is that there is a function called has_capability, and for administrators, has_capability will always remain true, no matter how the roles are configured. how to change an administrator's permissions.--
Adopting best practice based on the Least Privilege Principle suggests that administrators should normally use a manager role, not an administrator account, in the same way that it is recommended not to log in to Linux as source. For best viewing, use google chrome. This video was created under google chrome browser.