Ok, Cannondale's site is showing this bike's NCX is an air fork.
https://www.cannondale.com/en-us/bik...uick-cx-1/2020
If the OP doesn't like this fork, and wants rigid, the OP should do a search on the bikeforums for "suspension swapout". There are a number of postings with hybrid bikes having suspension switched out to rigid.
This will give you an idea of what has been available in the past and what to search for.