There are many situations where dictation makes far more sense. Around here, all doctors dictate into a recorder (often with a foot pedal) that the nurse transcribes, because typing would be distracting and also unsanitary when examining the patient. Some have started using machine transcription, often in the cloud. This is terrible for privacy and security, even when it's "GDPR certified", whatever that means. Having a local option is amazing for that.

Similarly, I've used dictation when working on something physical, like reverse engineering some hardware, where my table is full of disassembled electronics, I might be carefully holding a probe or something like that, and having to put everything down just to write "X volts on probe Y" would slow me down.