JOBTYPE "EpAgentBackup"

The object model for agent job handling is being reworked. Did you try Get-VBRComputerBackupJobSession already?

https://forums.veeam.com/post497164.html?hilit=epagentbackup#p497164

We are using several PS scripts to generate CSV files with all the information about VM, Agent, NAS, Plugin and SQL-TLOG sessions that did produce backups during e.g. the last 24h.

The part that produces agent data might serve you:

#agent backup jobs
$all_agent_backup_sessions = Get-VBRComputerBackupJobSession | Where-Object { $_.CreationTime -gt (Get-Date).AddHours(-$interval_in_hours)};
foreach ($backup_session in $all_agent_backup_sessions){		
	$session_tasks = Get-VBRTaskSession -session $backup_session
	foreach ($session_task in $session_tasks){
		$obj_client = $session_task.Name;		
		$obj_group = $session_task.JobName;			
		$obj_job = $session_task.Info.ObjectPlatform.Platform.ToString();				
		$obj_schedule = $backup_session.Progress.StartTimeLocal;
		$obj_status = $session_task.Status;	
		$obj_level = $session_task.WorkDetails.TaskAlgorithm;
		$obj_size = ($session_task.Progress.ReadSize /1024 /1024 /1024 /1024) -split ',' -join '.';	
		$obj_files = 1;
		$obj_start = $session_task.Progress.StartTimeLocal;
		$obj_stop = $session_task.Progress.StopTimeLocal;
		$obj_expiry = $session_task.Progress.StartTimeLocal.AddDays(42);	

        #other code to push things to CSV here...
    }
}