You're talking at cross-purposes here - representation isn't "the point" of the work, you can have representation of something without a point behind it.
This is a bit of a recurring pattern (one might say, a theme) of our conversations, but you seem to be setting a very high bar for what qualifies as meaning, and I'm not sure why.
Okay, sometimes a cigar is just a cigar. However,
what is a cigar? To even know what a cigar is, I have to have some cultural knowledge about cigars.
And if you're describing a character and you have them smoking a cigar, then I as a reader am going to use my cultural knowledge to try and figure out what that means, not on the level of "ah, clearly the cigar represents a phallus and this character has an unstable attachment to his mother" but on the level of "what does my cultural knowledge say about cigars and people who smoke them?"
For example, cigars are a relatively expensive luxury good. If a character is smoking a cigar, then I know they are someone who is willing to spend money on an expensive luxury good. Based on this, I might assume they are somewhat wealthy or hedonistic. Phallic symbolism aside, cigars in media do tend to relate to a characters personality, so I might assume that because this character smokes a cigar they share some qualities with
other characters who smoke cigars. If a character is smoking a cigar in public, I might assume they like to draw attention to themselves or don't care about social convention (because most people don't smoke cigars in public).
Sure, some of the things I might assume are based on tropes and stereotypes, not all of them will apply in any given case and they don't necessarily reflect reality. But we aren't talking about reality. If you gave that character a cigar I, as your reader, a going to assume you did it for a reason. Maybe the reason is something stupid like you were really craving a smoke while writing and just couldn't stop thinking about cigars or maybe it's something mundane like you needed that character to be holding something in their hand, but there is going to be a reason because art is the product of a person with intent.
Most people who have basic knowledge about what a cigar is or have consumed the same media will tend to come to similar assumptions, because we expect an author who lives in the same culture as us to share the same cultural knowledge. You could choose to ignore some or all of that cultural knowledge in order to subvert our audience expectations (although in some cases doing so would create further questions - if this character is so poor how do they afford cigars?) But you cannot simply pretend a cigar is meaningless. It's a representation of a real object that has cultural meaning. It doesn't have to be deeper than that, but that is already deep enough that you have to address it.
If the point is to create an entertaining story, then an entertaining story is still made up of elements which have cultural meaning. That's part of what makes it entertaining in the first place. Something completely meaningless, like a list of telephone numbers, isn't entertaining and thus noone would read it for entertainment.
Something like The Expanse (which gave me the inspiration for writing that scene) focuses a lot on real-world mechanics for space travel and represents it quite well, but is there some larger point behind that? No, not really.
Why write it then?
The deliberate decision to include the high-G scenes in the Expanse does have a point. Usually it has several points. These scenes create tension because characters we (hopefully) care about are in a stressful and physically punishing situation. There's always the fear that something will go wrong (and because we see it go wrong on occasion, we are always aware of that).
Also, it does facilitate important themes. James Corey could have written in a device that cancels out gravity and had everyone walking around perfectly fine like a Star Trek episode, after all the Epstein drive itself is basically magic. But instead he chooses to emphasize over and over again the fact that space is an alien and hostile environment from our earth-bound perspective, and one of the many, many ways this is shown is by showing the effects of varying gravity. It's not there for the sake of being there, it guides our imagination, communicates ideas or makes us feel a certain way which we might enjoy. That's the art.
And sure, it helps us feel immersed and grounded in the world by showing that the world operates on consistent rules. But again, Corey could have made whatever rules he wanted. He could have handwaved gravity away. Choosing not to was a deliberate action that has a point.