I have an evening Schengen-FRA-Longhaul trip coming up where the connection time is about 1.5h. Between the evening flight time (ie possibility of delays accumulating through the day) the stories about slowpoke FRA security, and the need to queue for non-EU exit immigration, all of this is a bit scary. How worried should I be about missing the second flight? And in the event that I do, is it relatively painless to get reaccommodated or do I need to keep records of queues etc. to prove I didn’t waste an hour taking my own sweet time at a bar? What’s the best place to arrange the rebooking - at Flight Connections or in a lounge?

sorry for all these questions as I don’t fly LH that often and like to be prepared!