Its LH policy:
Lufthansa Group passengers who are affected by a cancellation will be rebooked and notified. However, you are recommended to check the status of your reservation and your flight, as well as travel and entry restrictions of your final or transit destination before the start of your journey. Travel and entry regulations might change on short notice. Detailed information can be found on the government or embassy websites of your destination. If you are unable to start your journey due to changed travel and/or entry restrictions in the context of the coronavirus, Lufthansa Group offers free rebooking or refund.
https://www.lufthansa.com/xx/en/flight-information