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c# - How to display only included data in linq with ef core?

I don't use Include() Company and CompetencyLevel object but i can see data of Company and CompetencyLevel on frontend. Does the result variable contain data that i don't need. I don't want that. How can i fix it?

    [HttpGet("CompetencyExamPlan")] 
    public ActionResult<BaseGridResponse<object>> CompetencyExamPlan()
    {
         var response = new BaseGridResponse<object>();


         var result =
               from staff in _context.Entity<Staff>()
               join compReq in _context.Entity<CompetencyRequirementDetail>() on staff.Id equals compReq.StaffId into compReqs
               from compReq in compReqs.DefaultIfEmpty()
              
               select new object()
               {
                   CompetencyDefinition = compReq != null && compReq.CompetencyLevel != null ? compReq.CompetencyLevel.Definition : "",
                   CompanyName = staff != null & staff.Company != null ? staff.Company.Name : "",
               };

        List<object> resultList = result.ToList<object>();
        response.Data = resultList;
        return response;
    }

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