Hi Mehtaz,
The site is in development and needs een login to visit.
I'v added visitor frontend login in de hidden content field of this forum post.
The site is now on Joomla 4.1.4.
At the moment the class "container" is added to the section "sp-main-body". So this makes it almost perfect. There is only some padding or margin on the right which is not quite right at the moment.
If you change <section id="sp-main-body" class="container"> with your dev tools from your browser to <section id="sp-main-body"> you see what happens.
You do need a large desktop screen to see the problem.
See image from my previous post.
There is also a "Test" page in the menu. This page is an original Joomla article page (not a SP Page builder page).
On this page the class "container" isn't necessary.
Hope to hear from you soon.
Jeroen