Steno is great! But it takes a few years of hard effort to learn, and voice-to-speech tech is excellent now.
I wouldn't say that it's excellent now. It still has a long way to go. Small example, try enabling captions in Google's meet. Those are awful. Don't get a lot of words right, if you have an accent it's even worse. And distinguishing between different people talking? Forget about it...
It would look funky though, and I've read from people having problems with their voice after an 8 hour day speaking software.
Problem is probably not just speaking software. Talking for that long is tough. Period.