This isn’t really surprising. Microsoft has had a free equivalent for years with Azure Devops (formerly known as Visual Studio Team Service). Azure Devops has hosted build and deployment orchestration with either hosted build servers or local build servers using local agents. It also has private Nuget repositories, project planning, bug tracking etc.
Azure Devops deployment tools are (were? It’s been a couple of years) just as good for deploying to AWS as AWS’s own tools.