When i google "dark souls 3 controller spins the cameras." it seems a common problem with the game, unrelated to this app.

Początkowo opublikowane przez fadster:

Doesn't work with Arkham Origins. The game reverts to fullscreen on its own when the hotkey is pressed.

The program is not supposed to put a fullscreen game in windowed mode, you need to run your game windowed before using this app.

I don't use Win11 yet but historically MS.Windows treats borderless windows that use anything other than the exact size of the monitor as windowed applications, while if they're the exact measurement it treats it as if fullscreen, and gives less priority to rendering things in the background that cant be seen rendering things that are behind it, making it run much smoother.
It is odd that mismatching your resolution works for you.

Początkowo opublikowane przez straightpinman:

The software download was made to W10 download folder and the exe was ran from that location. How can I move the folder to a more permanent folder location and not break anything

Just make sure to turn off "run at startup" everything else is contained in just that exe and ini file so you can put them where ever.

What is your resolution, and what is the offset set to?

The behavior you're describing indicates that the game engine is forcing a particular window style, so every time my app changes it, the game forces the old windows style back again.
There's nothing i can do about that unfortunately.

Hi what version of windows are you on?
For clarity: there should be an icon in the System Tray (right-side of the Windows Taskbar) not a window.

What game

Which Windows are you on?