Website- model issues for Iphone 11/11pro and X

Hi there

I ve got a website that i ve devleoped for a client they provided the design , but they have been sending me vidoes of the site model causing to enlarge the screen and when it closes it causes the whole screen to reduce scale, this is on there iphone 11/11pro and X.

It works fine on my andriod and iphone SE and XD the most current ones and iphone 10 as i m getting other people to try it out for me and see if theres any issues on there end . The website is live and its called https://www.rated.global. Can anyone let me knwo what this could be the modal is in a wrapper which is fixed to 100vh and 100wv