Court ruling forbids all flights between 2300 and 0500 in FRA
This is not entirely surprising, but FRA still scores with 4 rwys compare to 2 at LHR, so can make up for it during the 18 hours/day when flights are permitted.
Apart from the banned departures and limited arrivals between 0500 and 0600 at LHR, the night flights ban at FRA is more or less the same as at LHR.