My first attempt to try to fix something like this would be to:
Download Fedora Workstation live media. (Within Windows or some other computer that boots.)
Flash it to a USB stick.
Reboot to the live desktop from the USB stick. (It might require pressing F12 or some other key combo during boot.)
“Try out” Fedora. (That is: do not install.)
Open GNOME Disks. (I think it’s included. Otherwise, you can sudo dnf install gnome-disks to install it temporarily on the live session.)
Try to mount the main filesystem that contains /etc/fstab (it should ask you for the LUKS password.
Comment out the Windows mount point. Or if you want to keep it (if the partition still exists and is just “dirty” and still needs a check from Windows) add “,nofail” after “auto” to the options in the line for the mount, so your system should still boot without that mount point.
Save the /etc/fstab file.
Shut down the computer.
Unplug USB stick.
Boot computer. Linux should successfully boot… hopefully. 😉
I’m also wondering: How did you add the Windows partition to Fedora? Was it from within Fedora’s installer (aka: “Anaconda”)? Or did you add it in a different way?
(BTW: I use Silverblue and have a long history with Fedora. 😁)