Lille is a frequent traveler between worlds, and when necessary, has the rational thinking logic similar to AI. He can clearly distinguish: this is another world, and the same name does not refer to the same thing.
[Johnny: Illuminati? Stuff from dime novels?]
[Johnny: Back when I was in Night City, there was an old lunatic ranting every day at the street corner about things like the Illuminati and terrifying robots...]
[Johnny: But I didn't know the AI in Cyberspace were like this.]
Johnny's commentary turns into text displayed in Lille's field of vision.
"Illuminati" in this world is indeed something that exists, only it's not human.
As far as Lille knows, the Illuminati in this world is a dangerous threshold entity.
Munemasa is sharpening a blade on the ground, its two fin-like feet constantly rubbing against the blade, looking somewhat comical and cute. This is it retrieving backup data from the endless sector: