On contemporary recordings, finger noise can often be reduced through editing out unwanted frequencies. Probably not eliminated, though.

For steel string guitarists I have found Finger Ease and all the commercial products don't help too much. I use (gasp) WD40 and it reduces noise and keeps rust away. It has not hurt the neck of any instrument I have owned including my Martin 0021, my B and D
tenor banjo, my five-string longneck RB175 and others. On the electric I own, flat wound strings work to reduce the squeaks but going through an amp also does.

Frank