Hi Mirit Sadon ,
I got the confirmation from the Product team that -
ClaimAny is a LRO (Long running operation). We don’t know which VM gets claimed at the time the request is made. So, the response does not have the VM details. Documentation here.
If this helps clarifying your ask, please 'Accept Answer'. If you have further questions, let me know in the 'comments' or you can connect with me via Teams.