You want these mods.

[Vizionblind]

This is a fix for Final Fantasy XVI that adds ultrawide/narrower support, uncaps framerate in cutscenes, lets you adjust gameplay FOV and much more.

Features

General
- Disable 30FPS cap in cutscenes/photo mode.
- Adjust gameplay FOV.
- Allow frame generation in cutscenes.
- JXL screenshot quality option and fixes hitching while taking screenshots.
- Allow the use of motion blur + frame generation.

Ultrawide/narrower
- Remove pillarboxing/letterboxing in borderless/fullscreen.
- Fixed HUD scaling with configurable HUD size.
- Fixed FOV scaling at <16:9.


https://www.nexusmods.com/finalfantasy16/mods/6

https://www.nexusmods.com/finalfantasy16/mods/top/

[Shadowlet]

Internet Explorer...

Drops the Nexus link which isn't even posted by the original creator

[mobbie]

Need a mod fix for mouse cursor not staying on screen on borderless window .-.

[Celto]

Originally posted by Vizionblind:

This is a fix for Final Fantasy XVI that adds ultrawide/narrower support, uncaps framerate in cutscenes, lets you adjust gameplay FOV and much more.

Features

General
- Disable 30FPS cap in cutscenes/photo mode.
- Adjust gameplay FOV.
- Allow frame generation in cutscenes.
- JXL screenshot quality option and fixes hitching while taking screenshots.
- Allow the use of motion blur + frame generation.

Ultrawide/narrower
- Remove pillarboxing/letterboxing in borderless/fullscreen.
- Fixed HUD scaling with configurable HUD size.
- Fixed FOV scaling at <16:9.


https://www.nexusmods.com/finalfantasy16/mods/6

https://www.nexusmods.com/finalfantasy16/mods/top/

This is the official and updated release:
https://github.com/Lyall/FFXVIFix

[Vizionblind]

both are updated