Laris has never met anyone in Picard’s circle - Ent-D or La Sirena - and has never been seen outside of the Chateau. It’s almost as if she’s Picard's imaginary friend.
Sssh. We don't talk about Laris anymore. We're meant to have forgotten about her by the end of season 3, just as Jean-Luc seems to have done.
Even then, she is not seen by other people. Only Picard. The only one who would be the exception is Jurati and that was still at the Chateau.