Hi! Sorry for the delayed response. Atlas focuses more on deployment pipelines, and is a more structured system for deployment-specific use cases. It has a lot of support for testing, application recovery, and state remediation.

Tekton is quite similar to Argo Workflows - they are both frameworks that provide ways to declare workflow pipelines for execution on Kubernetes. Per one of the Argo project leads, the majority of the users are using these workflows for ML, ETL, data processing pipelines, and CI.