I have my own personal opinion about this. I think everybody is looking at both. Or at least most people. I mean you’re looking at the object ball past the cube ball. Some people may be focusing more on one than the other, but you’re still looking at both.
I also have my own personal opinion, I 100% look at the object ball last and think you can see many things a one time, but you can only focus on one thng at a time IMHO