Map facet – Set the maximum zoom level for a marker cluster to appear

<?php

// Add to your (child) theme's functions.php
// Prevent marker clustering from a specific zoom level and up
// https://facetwp.com/help-center/facets/facet-types/map/#set-the-maximum-zoom-level-for-a-cluster-to-appear

add_filter( 'facetwp_map_init_args', function( $settings ) {
    if ( isset( $settings['config']['cluster'] ) ) {
        $settings['config']['cluster']['maxZoom'] = 10; // default: 15. Level must be between 1 and 20.
    }
    return $settings;
});