After you file


@Miketoyota  wrote:
  1. Starting with 2019 tax returns you can E-File a 1040-X amended tax return.  All prior years must be printed and mailed.

Please provide a link to a TurboTax FAQ or current TurboTax article which states the prior year amended returns can be e-filed.

I just posted you a current TurboTax support FAQ which states -

For years prior to 2021, you'll need to print and mail your amended return. Follow these instructions to amend a prior-year return.