TaxGuyBill you are correct - I checked back to 2020 and the form doesn't print with the return, so presumably is not in the file sent to the IRS for filing. You do have to fill it out (if tax is owed) and enter the date to be paid, in order to have no penalty calculated. It looks like it is actually ok, as it says "not efile ready until march 17" but it does appear that the form is ready and working. 

I was messed up, as I Knew that you had to fill it out and enter the date, just didn't remember that it didn't need to be part of the transmission.