Hi Roopesh
Thanks for using QandA platform.
Based on your description, you are currently using the Microsoft Azure AD Connect Provisioning Agent, not Microsoft Entra Connect Sync (formerly Azure AD Connect Sync).
No action is needed regarding this deprecation notice if you're not using Entra Connect Sync at all.
Find documentation for a better understanding of both tools: https://learn.microsoft.com/en-us/entra/identity/hybrid/cloud-sync/what-is-cloud-sync#comparison-between-microsoft-entra-connect-and-cloud-sync
You can mark it 'Accept Answer' and 'Upvote' if this helped you.
Regards,
Obinna