<PackageReference Include="Microsoft.Identity.Client" Version="4.84.1" />

Microsoft.Identity.Client.RequestType

Specifies the type of request being made to the identity provider.
Imds = 3

Instance Metadata Service (IMDS) request, used for obtaining tokens from the Azure VM metadata endpoint.

Instance Metadata Service (IMDS) v1 and v2 probe request, used to probe IMDS v1 and v2 managed identities to determine if they are available.

Managed Identity Default request, used when acquiring tokens for managed identities in Azure.

Region Discovery request, used for region discovery operations with exponential backoff retry strategy.

STS = 0

Security Token Service (STS) request, used for standard authentication flows.