If you want more control over the number of columns in the listing grid, you can add this to the listing grid widget:

selector .jet-listing .slick-list {
overflow: visible;
max-width: 67% !important;
}

You can set the max width to how big or how many columns you want. For example, if you want 3 columns, you can use 33%. You can also use pixels that are more responsive because, at smaller screens, it will automatically occupy 100%. Note: Make sure that you also set media queries if you want to change the column number for smaller screens.

if you want to hide the overflow on one side, you can add this to the container:
selector {
clip-path: inset( 0 -100vw 0 0 );
}