[DyslexicAtheist]

it was done by a customs official. long queue and everyone on the plane had to do it every time that I was there. I've never entered the UK without having to go through this.

Dublin -> Heathrow

Frankfurt -> Heathrow

Stockholm -> Heathrow

... and as I said I have seen similar things arriving in Frankfurt (in 2017 and 2018) and other places (Dublin -> Zagreb etc)

[ryanlol]

None of these routes were within Schengen, of course you’re going through border control when flying to the UK.