TurboTax would not have directed you to a form 1310, since, according to the form 1310 instructions (extracted below), it is not required.
Who Must File
If you are claiming a refund on behalf of a deceased taxpayer, you must file Form 1310 if:
• You are NOT a surviving spouse filing an original or amended joint return with the decedent; and
• You are NOT a personal representative (defined later) filing, for the decedent, an original Form 1040, 1040-SR, 1040A, 1040EZ, 1040NR, or 1040-NR that has the court certificate showing your appointment attached.
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