What do I need to do to filter the responses for the people graph call? For example I need to be able to only return people (and not conference rooms) https://graph.microsoft.com/v1.0/me/people/?$filter=personType/class eq 'Person' and personType/subclass eq 'OrganizationUser'"
I assume you are referring to the mgt-people component in the Microsoft Graph Toolkit? The component does not support customizing the query but I encourage you to create a feature request to add that support