Disable default layouts. Recommended Yes Module page https://www.drupal.org/project/layout_disable Module tags #Enhancement Stability Secure Tags #Layout Tips Disable layouts programmatically #Layout [Project update] Mantra Theme Page Template layout [Issue] Custom blocks break layout builder module - Quick Edit could not associate the rendered entity field markup [Module] Layout Builder Modal [Issue] Use granular entity type bundle driven field block categories when choosing blocks [Module] Inline Block Title Automatic