Why are State Estimated Tax Vouchers showing up on my state review before e-filing

Before e-filing my 2020 taxes I reviewed them & in the .pdf under the state section it is showing an area that has estimated tax vouchers setup to pay in 2021. Why is that there as  I never pay est. taxes. It wasn't on any previous years TurboTax printouts I reviewed before e-filing.  Below is the verbiage. I don't want to e-file & then the state is expecting est. payments from me.

 

"Estimated | Maryland Estimated Payment Vouchers for 2021 - Do not mail the
Payments to | following vouchers (Form PV (502D)) with your 2020 income tax return.
Make for Next | These vouchers are used to prepay your 2021 income taxes that will be
Year's Return | filed next year.
Mail payments according to the schedule below:
Voucher Number Due Date Amount
1   04/15/2021 $ 224.00
2   06/15/2021 $ 224.00
3   09/15/2021 $ 224.00
4   01/18/2022 $ 224.00
Include a separate check or money order for each payment, payable to  "Comptroller of Maryland". Write your social security number and | "Form PV (502D)" on each check.