@Konrad Wojciechowski (Nokia) Thanks for posting in our Q&A.
For this issue, what did you mean hardware identifiers? Here is some information about hardware device details showing in intune portal.
https://learn.microsoft.com/en-us/mem/intune/remote-actions/device-inventory#hardware-device-details
And we also can get these details via graph API. Please refer to the following links:
https://learn.microsoft.com/en-us/graph/api/intune-devices-manageddevice-list?view=graph-rest-1.0
Hope it will give you some ideas.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.