Correct, your net operating loss deduction is generally limited to 80% of taxable income since tax year 2021. Losses that were generated before 2018 are not limited, so if you have any losses from those years you can deduct them in full (up to 100% of your taxable income) before using any of the limited losses.
To enter your net operating loss in TurboTax, use the magnifying glass to search for net operating loss. Click on the first result: Jump to net operating loss. You will see a screen that says 2023 Net Operating Loss. Enter your deductible net operating loss in the first box, Net Operating Loss Carryover, as a positive amount. You will need to calculate this amount manually. On the next screen you will enter a brief explanation of how you calculated your net operating loss deduction.