Hi,
Thank you for posting the question to the Q&A forum.
Azure Blueprints service is designed to help with environment setup. This setup often consists of a set of resource groups, policies, role assignments, and Resource Manager (ARM) template deployments. Here is documentation to identify the exact differences with ARM: https://learn.microsoft.com/en-us/azure/governance/blueprints/overview#how-its-different-from-arm-templates
I hope the above information can help you.
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