Following is under-cooked, sure, however these videos (links embedded in pic) show similarities between Hong Kong International Airport and the Q "ABED" pic, Q2669.
46ABED65-02BB-4E0D-B71C-42203826DB8C.png
See columns, white ontop, shiny metallic lower to floor.
See blue style signage (blue-white theme, font)
See floor and overhead light patterns
Not certain it is Hong Kong. Could be another Chinese airport?
Have not found that particular sign next to a column like the one in Q pic, yet.
https://www.youtube.com/watch?v=Q-xtNU5zAWk