I don't know anyone who was refunded so far. I cancelled 3 tickets on LH via call centre, the first one on 2nd March, but haven't received anything.
The EU 621 regulation states that "you have to be refunded within 7 days if your flight has been cancelled and you requested a refund." The airline has to refund in full no matter the cause of cancellation (even for Covid) if the passenger decides to go ahead, the voucher can be offered as an alternative, but only in case that the passenger accepts it. The European commission already said twice this month that the rules stay the same and that the consumer has to be refunded in full if the service was not provided.
Lufthansa is not refunding anything, they accept the cancellation but they just don't process it.
I have already filled a complaint with Amex and they reimbursed the value of those tickets in advance, however I think Lufthansa will not refund until it gets government rescue funds.
The consumers lose again, the large concerns win, again! You will need to go to court and sue them, and in 99% of cases, then, and only then you will be paid!