function plt_hide_jetpack_menus() {
//Hide "Jetpack".
remove_menu_page('jetpack');
//Hide "Jetpack → Modules".
remove_submenu_page('jetpack', 'jetpack_modules');
//Hide "Jetpack → AI".
remove_submenu_page('jetpack', 'jetpack-ai');
//Hide "Jetpack → Settings".
remove_submenu_page('jetpack', 'http://127.0.0.1/wp-admin/admin.php?page=jetpack#/settings');
}
add_action('admin_menu', 'plt_hide_jetpack_menus', 2001);