How to compare the two list values and get the difference in each property?

var Matches = lstS.Where(y => lstT.Any(z => z.GroupName == y.GroupName)).ToList();
               var MatchesBoth = lstS.Where(y => lstT.Any(z => z.GroupName == y.GroupName && z.FieldName == y.FieldName)).ToList();
               var SourceDiffer = lstS.Where(x => !lstT.Any(z => z.GroupName == x.GroupName && z.FieldName == x.FieldName)).ToList();
               var TargetDiffer = lstT.Where(x => !lstS.Any(z => z.GroupName == x.GroupName && z.FieldName == x.FieldName)).ToList();