If you're looking for free STT you can use Whistle across Windows/Mac/Linux and Android (iOS released soon)

https://blazingbanana.com/work/whistle

Whispering [0] is Windows compatible and has gotten a lot better on Windows despite being extremely rough around the edges at first.

[0] https://github.com/EpicenterHQ/epicenter

Not sure why you got downvoted. I wish this was a tag or something.