Stenography is very different and limited - it's something like, you hit all the keys for a word at once and it's interpreted from left to right on the keyboard

Stenography is very different and limited - it's something like, you hit all the keys for a word at once and it's interpreted from left to right on the keyboard when you release them. So you're typing in a phonetic shorthand instead of full words, and stenography keyboards have some duplicate letters to support the left-to-right ordering when multiple are needed in a word. It can definitely be faster when typing English (court reporters do this to keep up with everyone's speaking speed), but I expect you'd need something new for other domains like programming.