Yes look on the right side of the Costco screen. https://www.costco.com/turbotax-deluxe-2023-federal-e-file-%2b-state-download-for-pcmac%2c-includes-...
It says
TurboTax Deluxe 2023 Federal E-file + State Download for PC/Mac, Includes $10 Credit In-Product*
It says Federal+Efile +State Download, not state efile.
But hooray you get a $10 credit from Costco which will automatically applied to the $20 fee. So you only pay $10. I download from Costco too.
