Your Roth IRA contribution for 2022 is to be entered into 2022 TurboTax separately under Deduction & Credits -> Retirement and Investments -> Traditional and Roth IRA contributions. TurboTax will sum the the two separate entries to determine the cost basis to include on Form 8606 line 22.
(If you made a contribution for 2021 in early 2022, that is part of your cost basis from years prior to 2022.)