On most modern distros (I think it was systemd that caused this change?) 1 is now the GUI, 2 is a text console, and 3-7 don't exist unless you manually add them.
It used to be that way, now when I try it F1 is a sign-in screen, F2 is my main GUI, F3-F6 are normal virtual terminals, and F7 is some process that I don't recognize.