I have not done LH since, just hops into Germany and check in has been std 2hrs for these.
Whilst I appreciate that airlines open their check in 2-3-4 hours ahead and publicise that they would like you to check in at least 2-3-4 hours before departure, it isn’t a requirement. If the whole aeroplane load turned up at 2 hours to departure the last person to check in would probably be at 1 hour to departure. When I used to travel every week I knew each different airlines check in closing time, that was my target, get to check in just before the check in closed, straight to security, often to have to be pulled out and put to the front, then on to the gate to board the aeroplane, minimal time in the airport. Now that I am with the family I give myself a bit more time, but I am no slave to the 2 hour request, in fact somewhere between 60-90 minutes is what I go for.