The hot "pro build" is to buddy up your rear brake and rear derailleur cable with a section of heat shrink and run that inside the frame. It keeps the section from your frame to the bar looking really clean and the two cables together inside the frame will rattle less. For the
Reverb/dropper... some people pull all the extra cable out of the frame an make sure the front zip tie is snug, others will take the extra dropper post cable and make sure it is pushed into the frame a bit so the cable is fully pushed against the tube. One direction or the other and it should be possible to get rid of most of the noise. My personal bike is virtually silent and it looks extra clean and tidy. --Sam