To remove the letterboxing in Hellblade 2, you'll need to tinker with some configuration files rather than using an in-game menu. Here's a step-by-step guide:
Ensure you've opened and closed the game at least once to generate the necessary files.
Locate the Engine.ini file, which should be found in one of the following directories:
For Steam players: C:\Users\YourUserName\AppData\Local\Hellblade2\Saved\Config\Windows
For PC Game Pass players: C:\Users\YourUserName\AppData\Local\Hellblade2\Saved\Config\WinGDK
If you can't see the AppData folder, you may need to enable the display of hidden folders.
Open the Engine.ini file using notepad or any other text editor.
Add the following commands at the very bottom of the file:
[SystemSettings]
r.NT.EnableConstrainAspectRatio=0
Be cautious not to alter or delete anything else in the file. Save the changes to the file. Launch the game once more, and voila! The letterboxing should be gone, allowing the game to utilize your entire monitor.