I use AMS a lot as my daughter lives there. Am trying to envisage how this actually works with their system of not segregating inbound and outbound pax? If some arriving pax need extra security checks to transfer to another flight, how this actually achieved in practice, ie do some gates have local scanners to re-clear some pax?
In practice - as far as I'm aware - UK arrivals just decant airside so no additional security checks. Occasionally US arrivals can get sent into the corridors leading to connection security I think, but mostly they also just decant airside. There is a security checkpoint at the Schengen-non-Schengen filter, which I think does random checks [I haven't been through that since I moved here].