Not sure if they all are identical but think they would be very similar for each model.
6AL-4V posted (1541 previous Q thread) after my post that the plane was a 737 and not a 767. Think that may be right, letter spacing is more like the spacing in the Q picture.
6AL-4V post 1541: "The plane is a United Airlines 737. The engine is a CFM56. It is not a long range aircraft."
I checked the range of a 737 and it shows about 5500 KM compared to a 767 5900 KM. A 787 has range of over 9000 KM. The range means that if the plane was a 737 it had to be a connecting flight and not one that was a leg from US to Seoul or Shanghai that typical is the route from US to Hanoi.
https://www.greatcirclemapper.net/en/great-circle-mapper/route/KSFO-ZSPD.html
PVG to SFO is 5344 NM
also aircraft mentioned was a 737-900 which has a longer range.
I agree 737 most likely not used for a trans pacific flight more likely a 767 777 0r 787 however I don’t really think it matters and people are way to focused on that detail for all we know the plane they are meeting could be in the image in the back up camera on the dash.