It's a non-issue. I never even realized that it was a thing until I several years ago I was listening to a podcast that involved discussing mental monologues and imagery and thinking "WTF are these people talking about?!", and then doing some research. I had previously always understood things like "mind's eye" and inner voice/conscience as metaphors or some kind of mystical superstition.
Same here. I never realized until I read an article about it well in my fourties.
I read the late Wittgenstein when I was twenty, and I also thought that thing with "the meaning of a dog is a mental image of a dog" was a metaphor. He quotes this somewhere to criticize it iirc.
I don't think in words unless I'm reading or writing and "thinking "WTF are these people talking about?!"" is just a metaphor for incredulity (how else am I supposed to that feeling across the internet, through text?). I especially don't have an independent, always-on commentator talking to me in my head all the time, which is what I gather "inner monologue" is.