On site layout options, you can choose from the 3 choices the wide, Boxed and Frame.
The Wide layout is the modern touch for most websites which Sections are full width sizes, that mean there are no borders on the corner or section background can go on both sides of the screen while content containers are still inside the sections.
Here are some useful links for deeper explanation:
https://wpexplorer-themes.com/total/docs/theme-layouts/
https://www.intentmarketing.co.uk/full-vs-fixed-width-website-design/
The Boxed layouts are mostly seen in older websites in which sides have spaces. Here are somesample websites that have boxed layouts:
https://www.androidpolice.com/
And The Framed Layout is the most seldom used layout. It doesn’t mean it doesn’t look good, but it is just not the common layout. This layout is more likely a combination of full width and boxed layout where all sides are wrapped around a frame for more or less 20 pixels.
