I never really got a good explanation how. From its example, it is used on the C: drive, which implies it is used on the Windows drive (with the Program Files folder, Windows folder, etc.)
But there's never really an explanation what a "system store device" really is. Is it where the BCD store is located? Is it the Windows C: Drive?
Can it be used on an EFI system partition to point to the boot files?
What is the system partition, in the context of
/sysstore? Is it the C: drive containing the Windows system folders, or the EFI System Partition?