"Search for 35 FA 0E 3C BC 74 and replace with 35 FA 38 3C BC 74 for a 21:9 aspect ratio..."
The FOV change makes the vertical FOV much bigger than it is by default.
Should be "35 FA 28 3C BC 74" instead of "35 FA 38 3C BC 74" to keep it the same as the original.