I do have an inner monologue, but I do make many decisions non-verbally. I often visualize actions and their consequences, in the context of my internal state. When I’m thirsty I consider the drinks available nearby and imagine their taste. In the morning coffee feels most tempting, unless I’ve already had a few cups - in that case drinking more would leave me feeling worse, not better. After a workout, a glass of water is the most expedient way to quench the thirst. It is similar when I write a piece of code or design a graphic. I look at the code and consider various possible transformations and additions, and prefer ones that move me closer to my goal, or at least make any sort of improvement. It’s basically a weighing of imagined possible world-states (and self-states), not a discussion.

I struggle to imagine how people can find the time to consider all of these trivial choices verbally - in my case it all happens almost instantaneously and the whole process is easy to miss. I also don’t see what the monologue adds to the process - just skip this part and make the decision!

That said, I do use an inner voice when writing, preparing what to say to someone, etc. and I feel like I struggle with this way of thinking much more.