are all those photos from 6. december 2023 or some from the web (probably from pre-covid time)?
I am for example surprised about the long queue at visa for arrival as now people from China, Taiwan, India etc., who had to apply for visa on arrival are now also under the visa exemption scheme and can go directly do normal immigration
strange that you were directed from the separate fast track (between the two Arrival Halls) to the priority lanes in Arrival Hall East. Was it still under renovation or probably understaffed at this time of the day?