(or maybe you just have a similar writing style)
Devil's advocate: why does it matter (apart from "it feels wrong")? As long as the conclusions are sound, why is it relevant whether AI helped with the writing of the report?
The last few sections could have been cut entirely and nothing would have been lost.
Edit: In the process of writing this comment, the author removed 2 sections (and added an LLM acknowledgement), of which I referred to in my previous statement. To the author, thank you for reducing the verbosity with that.