During development it's much easier to have Local Development configured for Azure App Configuration. Using Managed Identities for Azure Resources you can configure Local Debugging for App Configuration.

Azure Key Vault can be easily configured to be used with Azure App Configuration to fetch Key Vault secrets through App Configuration using key vault references. This makes accessing Azure Key Vault for your ASP.Net Core easier for centralized configuration management.

System Assigned Managed Identities for Azure Resources can be used as a no maintenance solution for authenticating supported Azure services quickly and easily.

User Assigned Managed Identities for Azure Resources can be used as a low maintenance solution for authenticating supported Azure services quickly and easily.

Key rotation is an important concept that can be implemented with Azure Key Vault and Azure Automation Runbooks.

Azure Managed Identities can be used to access services like Azure Key Vault with an automatically managed identity. Learn how to configure it with Azure App Service.

Azure Managed Service Identities (Known as Managed Identities now) can be used to access azure resources that support Azure Active Directory authentication like Azure Key Vault from Azure Virtual Machines.

Managed Identity is a feature where it gives an Azure Service an automatically managed identity in the Azure Active Directory that can be used to authenticate to any Azure Service that supports Azure AD Authentication.