No. The standard Effort field currently cannot be reordered or exposed within custom task field headers or sections in task forms.
Workaround: To view task Effort, add the Effort field column directly to the Timeline View or Grid View within the Project Plan.
Feature Requests: If your workflow requires displaying Effort directly inside custom task field layouts, please reach out to Rocketlane support or submit a custom development request (L4) for backend consideration.