OpenTelemetry vs Jaeger.

OpenTelemetry is an observability standard for generating data. Jaeger is a backend tool for storing and visualizing that data.

OpenTelemetry provides a single set of APIs, SDKs, and instrumentation libraries to generate, collect, and export traces, metrics, and logs. It removes vendor lock-in. Jaeger is the distributed tracing system that receives the trace spans from OpenTelemetry and displays them in a UI to track request paths.