Hi,
As best practice you should manage your infrastructure/resources as code - IaC/CI/CD. This could be achieved for example by deploying the resources via Bicep/ARM. Additionally, you can use the Export template functionality to export resources from resource group. Keep in mind that the export template has some limits where certain resources cannot be exported. Recently there is a new feature for resource configuration changes which will give you changes that happened for the last 7 days. You can use it to see what kind of changes were made in the last 7 days and if needed to revert the changes if the resource was not completely deleted of course.
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