CONTENT WIDTH is 1200 in both GP and Elementor (tried 1366 and 1100 for both, but no luck)
YES, I have enabled page header option to full width. Also added <span></span> , page builder container full width too.
It is NOT Horizontal. It is Vertical, on the right. If you pay attention a vertical scroller appears down the screen, take it to left and you will see a big Vertical gray space all the way down the page