Get a cardboard box and cut some strips from it and now tape them over the edges of both sides of your monitor, congratulations its now 4:3

The reason this works because on source engine there is no difference between 16:9 and 4:3 except for more on the edges

4:3 = 12:9 thats the exact same ratio. 12:9 plus 2 more on each side = 16:9. Its exactly the same. If you get 4:3 working all you get is 16:9 with the sides missing. Why bother?

Same applies to FOV

From Google-
"The maximum FOV CSGO supports is “68.” The actual camera FOV at a 16:9 resolution is locked at 90 degrees on any competitive server. This is the maximum viewmodel field of view that Counter-Strike supports, and the difference between the default setting of 60 and 68 makes a difference."

You choose 68fov at 4:3 you hit it at edge of screen
You choose 68fov at 16:9 you hit it at 12:9 of the screen

Again its exactly the same. Vertical fov stays constant so is the same at both aspects.

The only way you can change vertical is by using a different vertical aspect eg 16:10 which forces vertical fov to change because it cannot be divided into 4:3 or 16:9

That's a remarkably naive take on this blatant intel shill thread