When working on a wider screen, content editors may wish to continue viewing the full layout while the off-canvas dialog is open. This is how layout builder works by default.
This module overrides the main canvas style attribute with an !important css rule to remove the padding-right, so the off canvas dialog overlaps the layout. That's great on narrow screens, but cannot be undone - there is no way in css to restore the original padding-right, because we don't know how much padding there should be.
I think this would be ideal as a display option toggle: "Fit width" (or something like that). Unchecked by default to preserve existing behavior.
Alternatively, prefix the css rule with the .glb-body class (or use a dedicated class). Sites wishing to preserve default behavior could remove the body class.
Closed: works as designed
1.0
Code
Closing this. A reasonable css workaround is possible:
body > [data-off-canvas-main-canvas] {
padding-right: var(--drupal-displace-offset-right) !important;
}