OpenTelemetry is an open-source project that emphasizes vendor neutrality, allowing users to avoid the pitfalls of being locked into proprietary systems by providing flexibility in telemetry collection and analysis. The project consists of three main layers: apps and infrastructure, telemetry collectors, and telemetry backends. OpenTelemetry's loose coupling of components enables users to mix and match different SDKs, APIs, and collectors, which facilitates interoperability and reduces dependency on any single vendor. While OpenTelemetry excels in decoupling telemetry collection from storage, it does not extend vendor neutrality to the backend layer, where data is stored and queried. This limitation arises because backend systems require specific customizations that can create vendor lock-in, similar to choosing a programming language for an application. Consequently, while OpenTelemetry's design allows for maximum flexibility at the telemetry collection stage, backend decisions remain more fixed. To maximize flexibility, users are advised to standardize on open protocols like OTLP and adopt a layered approach to implementation, enabling them to switch components without overhauling their entire system.