Control Center program leads cannot currently transfer Portfolio WorkApp project ownership from one owner to another. This is a challenge especially for employees who depart suddenly and we lose control for what name displays as the "Owner" in the Portfolio WorkApp's Project List tab. Removing the departed employee from groups / shared items breaks the Project WorkApp, and must be re-shared to be functional.
"Transfer app ownership" only exists for the Project Owner, not available for the Control Center Program Lead. Users must be deactivated with license intact for Project WorkApp to continue being operational.