I'm noticing that Workload Time Estimates don't take into consideration subtask time estimates, rather just the main task time entry.
When a subtask has time estimate assigned and the main task has just a rollup total of all subtask time estimate (not it's own estimate), the workload time estimate doesn't include the subtask time estimates.
For larger, multi-step projects, we only estimate our subtasks. Having the Workload pull in just the main task time estimate is inaccurate and only represents a portion of the total amount our team members are working on.