You are using desktop software so you can go to Forms mode and print it on the 1040 instead of 1040SR if you want to. If you are e-filing-----who cares? The IRS only sees the data, not whether you used 1040 or 1040SR. The forms are identical -- only the print is bigger on the 1040SR. The lines and calculations are exactly the same; there is no effect on your tax due or refund.
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