Well I made it to the N’EX platform with only 15 mins before departure. But everything had to go almost perfectly to catch this train. My plane arrived on time, I was the first person off the plane (rare), and I walked as fast as my legs could take me. I’m gonna say to anyone else curious that I’d advise 1.5 hrs between flight arrival time and N’EX departure time just to be safe—but that’s me; I hate missing connections.

Everything else was easy. So thanks for the help!

There wasn’t a separate line at Immigration for QR code vs. paper, but there was in fact a separate line at Customs and I breezed right through with my QR code.