NVIDIA Overlay (Alt+Z) buggy behaviour

With the ‘basic’ performance overlay enabled when I launch the game I cannot click with the mouse button or look around. Once I press Alt+Z and bring up the full overlay I can actually use the mouse and look around and shoot. Pressing Alt+Z again to dismiss the overlay, I again cannot look around or click the mouse.

May be because on PC it doesn’t run on fullscreen, just borderless windowed?
Regardless it would most likely be a Nvidia problem, since it is their overlay.