Many of us use Google for work, with scheduling meetings being an important part of our everyday routine. As this is a gradual rollout, it will take up to 15 days for the feature to become visible to all Google Workspace users and those who have personal Google Accounts. This feature began rolling out for Rapid Release domains on July 11 and will begin rolling out on July 31 for Scheduled Release domains. As Google explains, only the first person to book an appointment will get added to the event automatically if multiple people are included in the recipient list.
Note that this feature only works for on- on-one meetings.