On the Proactive Search screen, there is a row of 4 icons at the top of the list of ‘Siri Suggestions’ which is announced by VoiceOver as a single unlabeled button which does nothing when double-tapped. These icons are selected/favorite contacts. When VoiceOver is disabled, tapping on 1 of these icons will result in various contact options being displayed (phone, message, etc.), which you can then choose from. Some of the Team have not been able to reproduce this. For them, VoiceOver correctly locates and announces the contacts and the VoiceOver rotor can be used to access the options for contacting them. So, this behaviour may be the result of a specific combination of settings or use case.