The Ops Agent is the primary agent for collecting telemetry from your Compute Engine instances. Combining the collection of logs, metrics, and traces into a single process, the Ops Agent uses Fluent Bit for logs, which supports high-throughput logging, and the OpenTelemetry Collector for metrics and traces.
If you’re using Kubernetes, Cloud Functions, or App Engine to deploy your applications, then all messages sent to standard out end up in the Operations logs automatically.