Last Sunday at EHAM/AMS. Arrived about 2.2 hours to go before departure for a KLM flight to EGLL/LHR. (6pm-ish)
Already electronically checked in but needed to check the bag. Website says to be at the airport 4 hours before departure but that was tricky for me as I was in Northolt.
Any way, bag check took 1 hour 20 minutes.
When I arrived at the Terminal, the queue for security screening was out the building and just at the tents. Yes, there are a row of marques for shelter for the passengers waiting to be screened.
I don't know how long it was after checking the bag as I nipped over to the Crew Centre and was through screening in seconds. I dare say if I had to go through the normal screening I would have missed my flight home.