LLM style is in many ways "The Atlantic from Temu". Nearly every article in The Atlantic sounds the same - I think we all know the cliches I am talking about. This doesn't mean that every author underwent a lobotomy (I hope). It just means there's a group of editors enforcing a common style.
Joining these editors used to take years of training in order to write like they do. Now we have their wisdom available on the command line.