How to change Samsung Galaxy S8 aspect ratio to 16:9?



There are only 3 resolutions and they all 18.5:9 ratio
 


How come, on my s7 edge I have 1920 x 1080, which settings do you get?
 


I have S8 not S7
https://www.gsmarena.com/samsung_galaxy_s8-8161.php
Resolution 1440 x 2960 pixels, 18.5:9 ratio (~570 ppi density)

on S7 you don't have Type C
 

Yes I know that I dont have type C. But I didnt know the resolution of S8, and I think you cannot change it.
 


There must be a way because with Samsung DeX it change the aspect ratio to 16:9 but don't have a suppot for games
and with wireless connection it works too 16:9 but lags