Is there a fundamental difference between it and true agency/thought? I’m not so sure.

Agency will emerge from exceeding the bottleneck of evolution's hand-me-down tools: binary, symbols, metaphors. As long as these unconscious sportscasters for thought "explain" to us what thought "is", we are trapped. DeepMind is simply another circular hamster wheel of evolution. Just look at the status-propaganda the film heightens in order to justify the magic.