MatthiasMpo

> hi @MatthiasMpo! MDC only applies to logs Hi @trask, maybe I was not clear. I set `enduser.id` via MDC and Span Attribute. After that only my requests and Dependencies...

I also tried it with `user_agent.original` ([SemanticConventions](https://github.com/Azure/azure-sdk-for-net/blob/08f5e5ad7502c5448c8c3024a8c0f6d2aae3c6f3/sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Internals/SemanticConventions.cs#L164)). It was respected in Request via Span, but not with MDC. If I use `xyz` I see in traces and request `xyz` as...