On Form 1040 line 11b there is a box that is checked if Schedule 2 is included in your tax return. If that box is not checked, Schedule 2 is not used and would not be included in your PDF.
Schedule 2 is used only if you have Alternative Minimum Tax (AMT) or repayment of excess advance premium tax credit. If you don't have either of those, Schedule 2 is not included in your tax return.
If you have AMT you would have Form 6251 in your return. If you have excess advance premium tax credit you would have Form 8962 in your return. If neither of those forms is included in your return, then Schedule 2 is not included either.
