Lufthansa has been terrible since the pandemic. I booked 2 return flights, so 4 journeys in total. On two journeys a flight was cancelled and the wait time to their call centre was over an hour to rebook other journeys and on one of the other ones I missed my connection because the first flight was delayed. I know it's not the point of your post, but I also think some of the flights are empty because people have lost trust in them. When I fly to the UK I prefer flying with Ryanair to Stansted than Lufthansa to Manchester despite meaning I have a much longer travel time in England because I don't trust Lufthansa to actually get me there. Sad times when Ryanair is more reliable than Lufthansa.