Before you manage administrators for site collections, make sure you have a plan for your site collections and their permissions.
For info about this, see Manage site collections and global settings in the Share Point admin center.
What services are visible in the user interface varies by the purchased track and license type.However, desktop-integrated services need to interact with cloud-based components.Because those cloud components are regularly updated to work with the latest version of the desktop product, both tracks should also be regularly updated. After creating the application pool, we start with adding service account to IIS_WPG, WSS_SPG and Performance Monitor Users group. OWSTimer starts with creating the application pool in IIS for the User profile service application.