Currently only delegated user permissions are supported, and this is very sub-optimal for bots and service applications that need to monitor Teams presence of users.
The late November preview looks to be associated with the Planner API, not presence, unless I'm missing something. Got my hopes up then!
Two separate links to same issue on this forum.
https://feedbackportal.microsoft.com/feedback/idea/b15ca827-982f-ed11-a81b-000d3a7dd504
https://feedbackportal.microsoft.com/feedback/idea/33600439-5124-ed11-a81b-6045bd864d4f