[Feature Request] [MGS3]: proper 16:9 is seemingly impossible on a 21:9 monitor

[ParrisDeluxe]

proper 16:9 on ultrawide

it would be really nice to be able to record 16:9 footage in fullscreen on a 21:9 monitor if possible.

on a 21:9 monitor, setting the resolution to 1920x1080 results in a stretched 2560x1080 image instead of a 1920x1080 game window with black bars.

[ShizCalev]

[Framebuffer Fix]
; Forces the framebuffer size to be the same as the custom resolution.
; Disable this if you want pillarboxing/letterboxing with your custom resolution.
Enabled = true

Set this to false in the settings file (MGSHDFix.ini), it's what removes the black borders.