Emdashes don't really tell you much anything these days tbh. Many languages use them regularly and those people often bring the habit with them when they write in English — me included. Plus I would imagine every major model has tuned them way down at this point due to the backlash.

I rewrote all the AI prose several hours ago with purely my own. I like em-dashes, and specifically use them with spaces as a habit. I don't know what to tell you.