Google Calendar Appointment Schedules
The existing appointment slot feature in Google Calendar is helpful for internal use cases, specifically if you don't know who needs to meet with you, but you want to make yourself available. For example, professors can invite their students to office hours each week or HR professionals can share availability for benefits Q&A sessions.
The new appointment scheduling feature is suited for external use cases, allowing external users, including those without a Google account, to schedule meetings. Additionally, with automatic conflict detection with existing Calendar events, this feature helps reduce time spent finding and rescheduling appointments.