I went through in mid-September, at a point where there really wasn't much else going on in the city. In the middle of July, my previous visit, I'd sailed through security in minutes. September was chaos - there were nominally priority lines, but you just couldn't get to them without joining the general queue first which was very quickly snaking round a number of tensa-barriers and nearly out of the terminal. Even when you got through the first automated gate you were thrown back into the general queue. Eventually I got to the point where the queue again split into normal and priority lanes - after in excess of 40 minutes - and was through quickly because that routed me into the new scanners (not that this was policed - I was just decisive as soon as I could be). If there was a F channel available to *G, it wasn't very well advertised. All that was on offer was some sort of expedited lane for close-in departures, although that was but a handful of flights. Once you were in the queue and stuck, even if your flight had subsequently appeared on the expedited list, there appeared to be no policy that enabled the queue guardians to pull people out and re-route them. Organisation was far from what I've come to expect at MUC.

Fortunately, in spite of Deutsche Bahn's best efforts, I'd arrived a little earlier than I normally would - about 1h50 before my flight - so I did make it in spite of a fairly late gate change from the main building to the remote one involving a train ride. There were a lot of very stressed people though, some of whom would certainly not have been as fortunate. I've mentally elevated it to a "arrive 30-45 minutes earlier" departure point for the moment.