For me, when I look past my finger, I see two and each is sort of transparent as the image of each eye is transposed over the other. Maybe you can only see one at a time?
Finally after some time of trying I was kind of able to see 2 fingers, but I think I have some sort of condition that means I mostly have monocular vision compared to binocular vision, which most people seem to have. I am still trying to understand how different I see things from most people. But this is something I never realized.
My brain really prefers to process from only one eye at a time, it seems. I wasn't able to get further than the 2 fingers even after more than a hour of trying. E.g. I wasn't able to duplicate anything on my screen.
Weird that I only now realize this after decades of living. I wonder what impacts has it had on my depth perception etc.