Voice dictation is so much better than GBoard, which I've been using until now. It capitalizes and punctuates sentences without me needing to, and got several sentences perfect without any post-editing needed, and it's all a local model. The one downside is no real-time update, just batch conversion once you're done talking. Looks like they've fixed the swipe backspace and spacebar to not be over-sensitive like it was a year or two ago when I last tried (and allowed some customization).
It has gotten very good but my brain is much worse at producing intelligible speech than it is at writing. I end up having to edit a lot anyway, which is hard with voice.
I'm actually surprised with how bad is Google's voice recognition - with all their immense compute resources, R&D, owning Android, etc, what prevents them from having SotA voice recognition?.. Even "it's not a priority" argument doesn't work as they are pushing Gemini assistant. (ChatGPT app works so much better.)
gboard has voice dictation and it has real-time update