why did turbotax not find my 2023 return?+
If you used exactly the same account and user ID then it would be simple to transfer 2023 to the new 2024 return.
How to transfer last year’s return?
https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/transfer-last-year-return-turbotax-online/L279eUvY2_US_en_US?uid=m6ayqk1s