Yes. I have a new 24gb 1tb M5 13" MBA. I loaded qwen2.5-coder:14b for a trial and it was impressive. Ran as fast as my honking big AI Pc with a Radon 7900xt 20gb. But... It almost instantly got hotter than I have ever felt a laptop reach. And I mean putting an i7 or i9 big fan laptop to shame for heat. No doubt it immediately throttled although I didn't check, but that was the last attempt at an LLM on that box. I didn't buy it for AI and have other equipment for that use. IMO, the Air is the wrong box for heavy duty AI, even if it performs well and I have no desire to burn up a really nice laptop that I need for other uses.
An M5 Mini or Mini Pro should be a super LLM box when they come out, just because of the presence of a fan.