Waitlists as you describe don't really exist the same way outside of the US. EK have wait-lists that you may get on by phoning through, but these aren't normal process, and for many reasons people can jump over the hidden wait-lists. It is all designed to protect revenue possibility, so a wait list can mean nothing.

You'll not see a waitlist screen at the gate in Europe or the middle East as you do in the US. As such, there's nothing in Manage My Booking or the App to capture this, as it's just not custom and practice outside the US.