How to set custom homepage via a plugin

You can replace the homepage template via plugin like this:

// Filter to replace the template of the home page
add_filter( 'template_include', 'replace_home_page' );

function replace_home_page( $template ) {
    if ( is_front_page() ) {
        return plugin_dir_path( __FILE__ ) . 'new_template.php';
    }
    return $template;
}

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