Yes, there are heaps on mine -I do not even know what half of them do -there are all the "F" ones at the very top,. also do not use, Home Page Up or Down, End, FN, Scroll lock, Pause/break and until I looked now I did not even realise that some of these existed!
I never use the numerals panel to the right of the alphabet and related keys!I also rarely use a huge number of those too!! I never did typing at school and so I am totally self taught,but only to use exactly what I need!!
Well now, I don't know! I guess if I knew then I would probably use them.... which would ruin the point....
I generally type looking at the screen not the keyboard, so I don't really know which keys I use or not.