Comparing macOS Dictation With Google Voice Typing
You have two main options for speaking to your Mac and having it take dictation. There is the built-in macOS Dictation function which works almost everywhere on your Mac. If you use Google Docs and Chrome, you can also dictate using Google's Voice Typing feature. Google's option seems to work better for typing, but macOS allows you to dictate in other apps and is highly customizable.