conditionally output link in layout builder facetwp_builder_item_value

<?php

add_filter( 'facetwp_builder_item_value', function( $value, $item ) {
    if ( 'website-link' == $item['settings']['name'] ) { // adjust website-link to name of your layout field https://d.pr/i/gL3rjA
        if ( !empty( $value ) ) {
	    	$value = '<a href="' . esc_url( $value ) . '">website</a>';
        } else {
            $value = '';
        }
    }
    return $value;
}, 10, 2 );