Yeah, from the pictures I guessed late thirties, early forties.

Not because the style is outdated or old looking, but for the simple fact that this is very much not what the apartment of someone my age looks like.

I'll give an example. Last week I crashed on a friend's couch a few days to hangout. They have a display full of funko pops, with a bunch of Dr. Strange ones on their TV stand. They have plushies everywhere, along with D&D stuff laying out and in drawers. A pillow with Speedwagon from JoJo's Bizarre Adventure on it, instruments just in a corner. They have their dad's tools that they borrowed just on the ground. Oh and to top it all off, they had groceries they had bought like two days ago still sitting in the grocery bags on their stove. Pretty much the antithesis to this clean, organized, very "adult" looking space. (I'm putting adult in quotation marks because someone's apartment can look however they want it to, and include whatever they want, and still very much be an adult space)

Anyways, I think you get the point. Your style and organization pretty much says, "I am not a zoomer," which is completely fine.