I'm in the US and bought the phone from T-mobile, there is no screen protector. There was a plastic film over the screen with a tab to remove it when I took it out of the box , but if there's a screen protector on this phone it is undectectable
The phone also comes with plastic protective strips on the edges of the phone @Davie01 as well as a factory fitted tpu screen protector.
Have you removed these edge strips ?
Current Phone > Samsung Z Fold³ 5G. > Software : Android 12 ~ Samsung One Ui 4.