@Mohsin Farooqui Thanks for posting in our Q&A.
Based on my check, the official article shows it will remind you when you need to renew the certificate.
If you don't get the notification, I find someone share a workaround that monitor MDM push certificate with PowerShell. For more details, please refer to the following link:
Note: Non-Microsoft link, just for the reference.
Hope it will give you some ideas.
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