Feature flagging is crucial for agile software development, enabling efficient feature releases and incident management, but can lead to vendor lock-in when using proprietary systems. Vendor lock-in arises from deep integration, complex configurations, and dependencies on specific vendors, leading to high costs and reduced flexibility. OpenFeature offers a solution by standardizing feature flagging functionality, allowing universal API use across vendors and minimizing vendor lock-in. This standardization simplifies development, maintenance, and transitions between providers. DevCycle exemplifies a future-proof platform using OpenFeature standards, offering advanced capabilities and integration flexibility. Choosing a feature flagging system is a strategic decision impacting long-term agility and technological evolution, with OpenFeature and DevCycle providing a balanced approach to maintain flexibility and protect investments.