Our primary use case is custom and vendor-supplied web application log aggregation, performance tracing and alerting.
We run a mix of AWS EC2, Azure serverless, and colocated VMWare servers to support higher education web applications.
We're managing a hybrid multi-cloud solution across hundreds of applications, which is always a challenge. There are Datadog agents on each web host, and native integrations with GitHub, AWS, and Azure and that gets all of our instrumentation and error data in one place for easy analysis and monitoring.