PSO2 NGS's render window stays to the bottom right, and doesn't full up the screen

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Game name and version:

Phantasy Star Online 2 New Genesis (Steam)
aka PSO2 NGS

Mods and mod versions used

OptiScaler v0.9.0-pre5 (207669e) (20251031_172602)

GPU

NVIDIA GeForce RTX 3070

OS

Windows 11 (10.0.22631)

Used automated or manual install?

[x] Automated

If on AMD/Intel and Automated, used DLSS inputs?
[x] Yes

Also please mention in description which upscaler inputs are used (which upscaler you selected in game settings).
DLSS

Did you check the Wiki and Compatibility List?

Yes, PSO2 NGS isn't listed in the Compatibility List

Please describe the issue and steps to reproduce it

I am using DLSS in game settings and the game's 3d view stay to bottom right as I change to each preset, and the output isn't scaled to the full screen

I have attached

• OptiScaler.log (set LogLevel=0 and LogToFile=true in OptiScaler.ini, zip it if too big)
  OptiScaler.log.zip

• Screenshot of game folder (where you placed Opti)

• Screenshot of Opti overlay in-game _(opens with shortcut, default Insert)

(I'm also able to reproduce this issue my SteamDeck as well, but I wanted to test this on my Windows desktop as well to see if this was Linux only issue)