@IMK, Thanks for posting in Q&A.
From your description, I know you want to send notification to admin when device goes non-compliant.
Based on my research, here are the steps you can follow.
1.Create a Microsoft 365 type's group and add admin user.
2.Create a notification message template.
3.Create a compliance policy and in the Actions for noncompliance session, select Send email to end users and select Additional recipients then add the Microsoft 365 type's group.
4.Assign the policy to All users.
After that the admin user can also receive the non-compliant notification.
Hope it will help. If there is any update, feel free to let me know.
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.