<PackageReference Include="Azure.Storage.Blobs" Version="12.31.0-beta.1" />

Azure.Storage.Blobs.Models.LayoutAwareRouting

public enum LayoutAwareRouting
Determines whether locality-aware routing is used for the parallel range requests issued by a download. This is a performance optimization only - the bytes returned are identical regardless of the mode used.
Auto = 0

Default. The locality-aware routing behavior is determined by the client library and may be updated in future releases. Currently, locality-aware routing is disabled by default; use Enabled to opt in.

Never route range requests based on the blob's layout. All requests are sent to the client's configured endpoint.

Enabled = 2

Opt in to locality-aware routing. The blob's layout is fetched on demand and cached (with automatic background refresh), and each range download is routed to the optimal endpoint for the chunk being read.