IAsyncDisposable Only support for scoped registrations -(V4?) (V3?)

I am trying to determine if the Azure functions DI model is expected to work for (scoped) registration that expose **only** IAsyncDisposable... (my triggering point is ServiceBusClient in Azure.Messaging.ServiceBus but the question is really generic)

I do not see their DisposeAsync called, whereas their Dispose is (if I flick them to IDisposable)

I am seeing disconnected remarks/documentation hence this ticket in an attempt to come a full understanding

seeing various core PRs/comments etc that lead me to an understanding of support at core level (host etc) but not for DI scopes (and what they contain)