OpenTelemetry offers a comprehensive toolkit for deep insights into applications, focusing on gathering and transmitting data rather than storage, dashboards, and testing. It provides instrumentation libraries for various languages, an efficient collector tool for data management, and a protocol for sending observability information. OpenTelemetry Observability works by adding observer instrumentation to systems, allowing standard formatting of trace, span, metric, and log data from code libraries. The project doesn't include storage or display solutions, instead relying on external tools or services like Chronosphere or SaaS metrics services. As a rapidly trending topic, OpenTelemetry promises flexibility, control, and freedom from vendor lock-in, making it an attractive solution for organizations seeking to improve their operational resilience and system health.