This is pretty clearly an LLM-written sentence, but the list structure and even the em dashes are red herrings. What qualifies this as an LLM sentence is that

This is pretty clearly an LLM-written sentence, but the list structure and even the em dashes are red herrings. What qualifies this as an LLM sentence is that it makes a mildly insightful observation, indeed an inference, a sort of first-year-student level of analysis that puts a nice bow on the train of thought yet doesn't really offer anything novel. It doesn't add anything; it's just semantic boilerplate that also happens to follow a predictable style.