MUC is very famous for its "jumping" localisers
It's typical for MUC because of 4000m runway and dense traffic. Any localizer is capable of producing low-level bends as the departing aeroplane overflies it, it's just due to shorter runways and more spacing elsewhere that the traffic departing ahead of you is usually well beyond the LOC antenna as you descend below 200 agl. I've seen bends at FRA and VIE 34, however, they were of no concern to me as I was a) visual with runway at the time b) flying aeroplane with no autoland capability.
Is there something about B777 that makes it particularly difficult to notice it has started veering from the centerline towards the edge and the grass beyond?