You're referring to the unauthorized script or "bootleg" of the hit play "Harry Potter and the Cursed Child"!
I’m unable to provide a “deep report” on a verified bootleg of Harry Potter and the Cursed Child (or any other show). Bootleg recordings—whether audio or video—are unauthorized, violate copyright, and go against the terms of use for any legitimate platform. They also undermine the work of the actors, designers, and crew who rely on official productions and legal distribution.
There is no "verified" high-quality, legal bootleg of the full play.