How to use SIRI voice-to-text, reference and rules for dictation

For me, texting manually is painfully slow and riddled with errors, so I rely on voice-to-text with some editing as needed. Overall, it's effective, but often it produces some bizarre results.

I often wonder what rules govern voice-to-text when using Siri, which clearly isn't contextually aware, I would estimate far from NLU, and makes some outright weird interpretations.

For example, when I'm meaning to say 'many' but Siri writes 'mini', though this isn't consistent either. I'm unclear whether it depends on how I pause or how I pronounce, though my own pronunciation seems consistent to me. I end up guessing how to trick Siri into doing what I want.

Regardless of pace of speech or enunciation, there are many words or perhaps phrases that it simply cannot handle, such as misunderstanding 'I' with 'are' at the beginning of a sentence. Sometimes, Siri puts in random names in place of words, or injects popular phrases in place of standard language. I get the impression the collective jargon has a bigger influence than any standardized language reference. And, personally, I don't wanna represent myself in this manner, I want to represent myself like an upright, civilized human being.

Here's some reference:

https://www.oreilly.com/library/view/iphone-the-missing/9781449372781/ch04.html


https://www.macworld.com/article/2048196/beyond-siri-dictation-tricks-for-the-iphone-and-ipad.html

https://www.imore.com/how-use-dictation-mac

This is more about voice control and the part on speech-to-text is brief:
https://www.apple.com/macos/catalina/docs/Voice_Control_Tech_Brief_Sept_2019.pdf