Hi, @Duchemin, Dominique
Thank you for posting in Microsoft Q&A forum.
Yes, it is the same certificate as the Distribution Point Certificate.
When the PXE DP cert is about to expire (in less than 30 days), the PXE server will generate a status message once a day. The status message ID is 6317.
A similar thread:
https://www.reddit.com/r/SCCM/comments/icna0s/sccm_distribution_point_certification_renewal_pxe/
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