As I reported elsewhere, the Blu-ray is cropped on the top, bottom and left side compared to the old DVD release which was about 2.2. So, you are probably getting about 2.1 (76%) of the width of the 2.76 Ultra Panavision image on the HDNet/Kino Lorber Blu-ray.
DVD
HDNET/Kino Lorber Blu-ray
Kino said their transfer is based on the 2020 release on Prime and HDNet, The difference is Kino has the Overture, Intermission and Exit music. On the Laser Disc the overture and exit were the same.
Olive Blu-ray
HDNet broadcast