The museum's second (and last) update includes something pretty neat and something pretty foul. The neat thing: A little photo booth where you can get your avatar to auto-pose in some lain scenes, including the well-known one of lain looking down with the purple sky and power lines behind her.
The foul thing: the new room is just an advertisement for the subscription-based ChatGPT-powered text-to-speech lain chatbot they're rolling out. They had a video demonstration of the original voice actress testing it out and the vibes are awful.