You are being mislead because the page was updated on 1/10/23. I'm not sure what the update was but the original notice ( I have a screenshot) was posted on 2/10/22. I took the screenshot before the update as I submitted a complaint with the BBB against TurboTax on this issue. They said this would be available soon almost a year ago. On top of that you can not contact anyone in tech support. So Turbotax wants to take money for a product but not support the product. FYI, here is the TurboTax posting with the 2/10/22 date
Can I e-file my 1040X to amend my return?
SOLVED by TurboTax 6084 Updated February 10, 2022
The TurboTax amend process for 2021 will be available soon. When it's ready, you can e-file your 2021 1040-X.
For years prior to 2021, you'll need to print and mail your amended return. Follow these instructions to amend a prior-year return.
Three weeks after mailing your amendment, you can start tracking it at Where's My Amended Return? on IRS.gov.
