When running a deployment and showing its status, specially on longer deployments, the TeamCity agents will be on hold for the duration of the task. On deployments where guided interruption is enabled this is specially taxing on agent licenses.

Since 2020.2.4 TeamCity has introduced agentless builds, where an agent can be detached during the execution of a build, and requires the running process to call TC back via api and inform the build has finished.

This is currently not possible on the plugin and, using powershell, I've found hard to establish the whole deployment status at X point in time.