The vast majority of software I use adheres to the following convention for mouse wheel behavior when scrolling a view area of some kind:
Scroll wheel: vertical scroll
Shift + scroll wheel: horizontal scroll
Ctrl + scroll wheel: zoom
This includes Audacity, MuseScore, GIMP, Inkscape, LibreOffice, Firefox, Google Chrome, Polyphone, among others. Many programs that don't follow this convention by default at least allow the user to change the mouse wheel behavior in preferences, including Reaper and Mixcraft. With Cakewalk as an exception to this behavior, I'm constantly fighting against the muscle memory I've built up through my daily computer usage, so much so that navigating views in Cakewalk has become an aggravating experience.
So, if you haven't guessed by now, my feature request is for the ability to customize mouse wheel modifier key behavior. Here is Mixcraft's settings page for this: