Please excuse the horrible drawing.
I have a ceiling fan/light combo running from a single smart switch.
The wiring coming into the switch box and going to the fan have a black, a white, and a ground wire (3 wire romex).
The switch is grounded and connected to neutral.
What I want to do is add a second switch. Have the incoming hot wire and neutral wire branch to both switches.
I then want to run (using the black/white/ground romex) to the fan/light combo by using the black wire for one and the white for the other.
The fan/light would still be grounded but not use the neutral.
Would this be a problem?