Yeah, you aren't selling anything. "Reno has a 100% pass rate for recovering cleanly after the loss phase, so the bug is almost certainly related to CUBIC" is a perfectly fine technical text.
Another LLM tell is that they penalize repetition so they'll use as many synonyms as possible. You may end up recognizing the same concept being rehashed with synonyms constantly. You can look up examples of thie as "elegant variation"
In one of the languages I read, journalists do this when quoting someone and it pisses me off. Instead of "said", they'll cycle through the same 6-7 synonyms. Instead of just quoting everything together, they break it up.
So instead of:
> President Jackson said "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.".
They'll do something like:
> President Jackson noted that "Lorem ipsum dolor sit amet". The head of state also remarked that "consectetur adipiscing elit" while emphasizing that "sed do eiusmod tempor incididunt ut labore et dolore magna aliqua".
> "Ut enim ad minim veniam, quis nostrud exercitation", categorically proclaimed the former business tycoon. He concluded that "ullamco laboris nisi ut aliquip ex ea commodo consequat".
I've seen this way before LLMs and how much it's used varies a bit from language to language. But it's so formulaic, I can't help but imagine some brain-dead moron sitting in front of the keyboard, trying to make 5 paragraphs from 2 sentences someone said without adding anything else.