Albert Teoh discusses the integration of distributed tracing in microservices using Istio, focusing on how it simplifies service instrumentation by reducing the amount of code required. Istio's tracing integration can be achieved through either OpenTracing APIs or manual forwarding of Zipkin headers, with the latter being considered simpler. The ongoing discussion in the Istio community about adopting the W3C Trace Context highlights the evolving nature of tracing standards. While OpenTelemetry offers an alternative, its current limitations with B3 header propagation make it less suitable for some use cases. The article provides examples in Go and Java for context propagation, demonstrating both the OpenTracing API and manual methods. Despite the promise of service mesh solutions, some coding is still necessary for trace context propagation, with manual header forwarding offering transparency and simplicity.