CTO's previous job was at Palantir, perhaps he has some reasons to be paranoid

The hiring manager told me that they were getting a lot of "signal to noise" ratio in terms of their hiring, where they'd bring someone on-site who had a good assignment and apparently more often than not, these candidates would shit the bed in a live environment. So the CTO made a live take-home assignment and didn't tell anyone. I was told that he did this to weed out the low signal-to-noise people they dealt with recently.

>Had you disclosed to then that you used LLMs for coding "basic" features outside the math and whatnot?

No it seems completely immaterial. I'll happily talk about it if asked but it's just another tool in the shed. Great for scaffolding but makes me want to rip my hair out more often than not. If it doesn't one-shot something simple for me it has no use because it's infuriating to use. I didn't get into programming because I liked writing English.