Using `bootctl set-default @current` will set the default loader entry to the currently booted entry as read from the `LoaderEntrySelected` EFI variable. Also `bootctl set-oneshot @current` will set the oneshot loader entry to the current booted entry. Correspondingly `@default` and `@oneshot` can be used to read from the LoaderEntryDefault and LoaderEntryOneshot EFI variables.