Portrait to Landscape view

Hi team,
I am picking up closed ticket https://kriesi.at/support/topic/portrait-versus-landscape-view/ to see if you might be able to offer advice.
This is the issue:
Using Enfold theme. On mobile orientation, when switching from portrait to landscape, the elements move all over the place and content jumps to different places. It’s worse on the home page when you switch views content go back to top of page. On other pages not as bad as that but the content still jumps around, meaning someone reading a certain line, when switching views, will lose their place.

This is the current response from a provider on codeable:

https://ibb.co/MR3sGzq
Thanks