Windows won't show up in GRUB

Recently installed Windows on a separate drive (SATA SSD). It shows up on Boot list and I am able boot into it and Bazzite back and forth just fine, provided I enter BIOS.

MOBO is on CSM/Legacy mode and Windows Drive is being read/is under UEFI. I disabled Fast Boot and Secure Boot beforehand, and recently just disabled Fast Startup in Windows thinking that was the culprit.

I followed the following documentation: https://docs.bazzite.gg/General/Installation_Guide/dual_boot_setup_guide/

ujust regenerate-grub yielded
Generating grub configuration file  ...
Adding boot menu entry for UEFI Firmware Settings ...
done 


yet when booted into GRUB, all I see are Fedora with different ostrees
IMG_4220.jpg
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