The common use case for Office 365 exists because everything in today's world is on the cloud. When a user logs in anywhere, they have access to their data. In Office 365, there are different types of licenses, such as Business Basic and Business Premium. Every license has different storage capacities. In Business Basic, users get 5 GBs of storage, 50 GBs of primary mailbox, and 50 GBs of archive mailbox.
In Business Standard, users have access to web and desktop applications, with the same storage allocations. OneDrive storage is 1 TB. Business Premium is a more expensive license that covers all the features of Business Basic and Business Standard. Additional licenses include Entra P1, which is used for Entra Admin Center regarding login, MFA, and conditional access policies. Entra P2 is available for advanced settings for tenants. Other licenses include Microsoft Intune, EMS E3, and various add-on licenses.
Real-time co-authoring in Office 365 is beneficial because users with a Business Basic plan can log in on any platform through portal.office.com and access all applications. However, without a license, mail IDs are not functional.