Earlier quoted context omitted.
Interestingly there are people like myself who don't have an inner monologue (some people supposedly even have a constant dialogue with themselves) at all. The only time I experience something like an inner voice is when reading. My normal thoughts are more abstract I guess, I'm just sort of aware of what I want to do, how I feel etc. It's hard to describe.
I’m pretty skeptical of people that make this claim. It’s just surprising to me that a base level feature would work so differently. I’d expect some variation in models (like that old Feynman video about counting), but if you can speak and use language it’s hard for me to accept literally no internal voice is going on. I’ve always kinda suspected people making this claim are lacking introspection to such an extreme e…
If you're having a hard time grasping that, try doing or thinking about things while doing a mantra. I think you'll find that you're still able to "think" while the only thing your inner dialogue is saying is some kind of mantra. (It may take some practice)
You can also try speed reading apps which force you to absorb information without the time for an inner monologue.
I find this helps with introspection as you can observe ideas without the (direct) bias of language. Being able to recognize and observe the thing that's making your inner monologue happen is a useful skill, I think. I can't really imagine being bound to language like you're describing, and it often takes me a while to put more complicated ideas into words.
Languages categories are never going to be accurate. Is a whale a fish or a mammal? Well technically a mammal, but if you want to put someone in charge of them it's probably better if it's the department of fisheries than whoever's in charge of buffalo. One of of them has boats. The word is just a word, a pointer at a vague collection of things with similar properties. Being able to think about and work with the things directly without the distraction of language is very important to me.