Shaft specifics need to be matched to your swing analysis.
This is actually the most important part of a fitting. Off the shelf clubs are generally uniflex - one size fits all from a flex perspective.
Swing analysis and proper shaft flex makes a big difference.
No, they’re usually regular, stiff, ladies. Some stores will carry X flex options and some of the higher end stores will carry homemade shaft flex options, usually derived from thousands of years of Native American technology.