So you getting the same error in Fedora Silverblue/Kinoite? If you have Bazzite on a different disk you could remove all the partitions of the disk and do a clean install, the installer might be getting confused with one of the partitions that is on the disk and raising the error
I am dual booting it, it worked before a few days ago but now it's not, I always delete all the partitions on the disk except for the windows partitions
Hmmm, try booting a live distro of fedora, ubuntu or mint. Doesn't really matter. Open the efi partition and check if there is a Fedora folder. I have seen re-installs fail with dual boot due to this, the installer fails because it cannot write to the efi fedora folder because it's already there.
When you boot from a live distro, you should be able to mount the efi partition from from within the file manager. You can also mount it via the "disks" utility in gnome if you cannot see it
Unfortunately Bazzite and other atomic desktops don't have a live cd. So you might be able to do it via tty in the Bazzite installer but I find gui's a bit easier
Good news @wolfyreload @antheas deleting the fedora folder from the efi partition did the trick, however, I'm not sure whether I am well off using the same efi partition as windows because I've heard that sometimes the windows update deletes other OSs from the efi