My 3440 x 1440 is definitely NOT 1920x1080 upscaled. I would be happy enough if they allowed to resize the WINDOW in which the game is running, so I could manually adjust the size to 1920x1080 — and that's the first thing I tried! — but noooooooo, the window is automatically set to full screen (see above) and CANNOT BE RESIDED through dragging.
The game itself (plot, scripting, acting, etc) is great. But coding sucks.