It's time access is reviewed on F lounges. They should be for F ticketed passengers only and Golds purchasing a club / first ticket. The reason for the overcrowding is to many having access.

I had the joy of sitting next to a another Gold yesterday on a LGW flight in economy who bragged he had bought a hand baggage only fare, then from his bag took out cans of drinks/ crisps and even sandwiches he had taken from the F lounge