Archtop guitars with carved tops usually do. Flat-top acoustic guitars have a complex bracing system that would get in the way of F-holes (nylon string guitars

Archtop guitars with carved tops usually do. Flat-top acoustic guitars have a complex bracing system that would get in the way of F-holes (nylon string guitars are usually fan-braced, and steel string guitars, with more tension, are X-braced).