This is all very nuanced and there isn't a clear cut answer. It really depends on what you're running, for how long you're running it, your device specs, etc. The LLMs I mentioned in the post did just fine and did not cause any overheating if not used for extended periods of time. You absolutely can run a SMALL LLM and not fry your processor if you don't overdo it. Even then, I find it extremely unlikely that you're going to cause permanent damage to your hardware components.

Of course that is something to be mindful of, but that's not what the person in the original comment said. It does run, but you need to be aware of the limitations and potential consequences. That goes without saying, though.

Just don't overdo it. Or do, but the worst thing that will happen is your phone getting hella hot and shutting down.