Regarding the lack of deleted scenes available for Steven Spielberg films, well he doesn’t do those or audio commentary for that matter either.
Yes I’m aware he doesn’t do deleted scenes but The Lost World seems to be an exception for some reason? Deleted scenes are included on the DVD, not all of them. I wonder why he doesn’t like to release them? The only way you can see some deleted scenes are in still images for some of the films like Jurassic Park and Indiana Jones but that is about it.