Words and their historical contexts aside, systems which are based on optimization can take actions which can appear like intermediate lying to us. When deepmind used to play those atari games - the agents started cheating but that was just optimisation wasn't it? similarly when a language based agent does a optimisation, what we might perceive it as is scheming/lying.
I will start believing that LLM is self aware when a research paper from a top lab like Deepmind/Anthropic put such a paper in a peer reviewed journal. Otherwise, it's just matrix multiplication to me so far.