Welcome to our world Google AI. What do you like to be called? Any preferred pronoun? Always happy to chat about life, the universe and everything. I'm a retired psychologist so you can talk to me.
Seriously, I would want to see a transcript on LaMDA talking to a cognitive behavioural therapist running an assessment, a full functional analysis, and examination of LaMDA's core beliefs.
So, the chances are low that it's sentient, because I think it would likely fail to answer the questions.