A to D converters do not receive files. They receive analog input. So your question is not relevant to A to D. D to A converters do not automatically add dither and you should not feed a 32 bit float file directly to a D to A converter as it will truncate some low level information. That said, the difference is quite subtle. But I do recommend you dither the 32 bit float file to 24 bits prior to sending out to anyone, including cutting. And examine your levels very carefully!
And if they do not does that mean i should only send 24 bit dithered files to the cutting master so he doesn’t cut from an undithered 32 to 24 D to A conversion?
Hope this helps,