Different format in connexion on the mode present

Hi everyone,
I need to create a UX presentation for my school, regarding this project I want to create a good presentation so I decided to create some page and use Figma for that. But my principal problem is : when I arrived in the section : SHOW ME THE MOBILE MOCK UP
My format is in laptop about my presentation but in my mock up I need to use an other format iphone13. So I don’t know how I can fixed this ?
Maybe there are something or not, for this moment I copy past my link in order to see the mock up…
Any ideas ??
Lovely Day !
Axel