Part of the fag voice thing I think is an affection some people put on for whatever reason, but I do wonder at times if it is somehow innate. My normal tone of voice I don’t think is very gay sounding, but I will admit when I’m using my “business” voice or if I’m nervous/shy for whatever reason my voice will go up a few octaves and I sound pretty queeny
The easiest place to hear a gay accent is in Ireland. They already sound kinda faggy but actual Irish fags are next level.