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arch/x86/boot/vmlinux.bin

arch/x86/boot/vmlinux.bin is created when the kernel is made with the following command (Linux version 6.5): 
objcopy  -O binary -R .note -R .comment -S arch/x86/boot/compressed/vmlinux arch/x86/boot/vmlinux.bin
vmlinux.bin is a requisite for arch/x86/boot/tools/build to create arch/x86/boot/bzImage.

See also

Don't confuse arch/x86/boot/vmlinux.bin with arch/x86/boot/compressed/vmlinux.bin.

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