I'm very open to the idea that consciousness is substrate independent. I have a hard time seeing why molecules could produce consciousness from an electro-chemical path, but not from a purely electrical path. Having said that, it should be very clear that LLMs are not conscious.

LLMs process language. I'd even go so far as to say that LLMs "think" and "understand", or at least, they produce a facsimile of thinking and understanding such that it's useful for us to reason about LLMs as if they think and understand. We're not used to interacting with a non-human entity with the capability to process language, so it's easy to ascribe human traits to these things. But their "minds" (insofar as they have anything like a mind) are completely different from ours. These things have language without consciousness.

Chimpanzees are conscious. Dogs are conscious. Maybe ravens and cephalopods? Who knows. These animals do have minds much like ours. Higher order animals are conscious even if they don't have language.