You mean open-matte? No, these films were all shot with anamorphic lenses, there’s no matte to remove to force the aspect-jumping gimmick and reveal empty space top and bottom.

IMAX’s aspect-jumping gimmick really only works now because digital cinematography and digital post has made using anamorphic lenses (which are kind of a pain) less necessary - almost unnecessary. So everyone’s shooting with spherical lenses and just matting off the parts of the frame they don’t need. IMAX knows this, and makes open-matte moments a big part of their exclusivity/licensing - a lot of the time, the filmmakers aren’t even the ones overseeing when the mattes get taken off or what has to be done in those sequences, it’s just IMAX doing it and then getting filmmaker approval once they’re done.