service.namespace support

Describe the feature.
Using APM or opentelemetry for tracing, I would like to have the ability to namespace services so that we do not get naming collisions between generically-named services (eg "auth", "api", ...). I would also like to be able to see the namespace in the APM view, and potentially filter by namespace.
As a workaround, we are prefixing namespaces into our service names (eg service.name='NAMESPACE_SERVICENAME').
The opentelemetry specification has the concept of a namespace: https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/resource/semantic_conventions/README.md#service but there doesn't appear to be a place in APM server to map that namespace to.