The context does not specifically mention whether the Scheduling Operations Agent will work in a partner trial environment for Dynamics 365 Field Service. However, it is important to note that the Scheduling Operations Agent is a preview feature, which may have limited functionality and is not intended for production use. If you have it configured but it isn't returning results, it could be due to various limitations or requirements that need to be met for the agent to function properly.
For example, ensure that your environment is updated to the required versions and that you have eligible bookings and resource requirements. Additionally, the agent may not support certain resource types, and it requires the resources to be available for work without breaks or other constraints during the optimization range.
If you continue to experience issues, consider reviewing the limitations and known issues associated with the agent to troubleshoot further.