No user information: Selecting this option prevents an integration from requesting any information about users. User objects will not include any information about the user, including name, profile image, or their email address.
User information without email addresses: Selecting this option ensures that User objects will include all information about a user, including name and profile image, but omit the email address.
User information with email addresses: Selecting this option ensures that User objects will include all information about the user, including name, profile image, and their email address.
If your integration is solely bringing data into Notion (creating new pages, or adding blocks), your integration only needs Insert content capabilities.
If your integration is reading data to export it out of Notion, your integration will only need Read content capabilities.
If your integration is simply updating a property on a page or an existing block, your integration will only need Update content capabilities.