On the screenshot attached, I am running a game from Steam in Windowed Borderless mode.
I honestly expected at least ONE sensor would get the reading for the fps correctly (or at least CLOSE to), but "Framerate=0", PresentMon Framerate (Presented=0,7" and "PresentMon Framerate (Displayed=0,7". Upper left corner shows Steams overlay, which shows 55fps.
Why can't any of them get the fps right? They don't even do it when it's the front most window.
Can't remember how far back, but I DO remember HWiNFO actually read the fps on the Windows desktop...