custom-wp-admin.php

<?php

if ( is_admin() ) {
    $userID    = get_current_user_id();
    $user_meta = get_userdata( $userID );
    $user_role = $user_meta->roles;

    if ( $userID != '1' ) {
        // Disable wp core Update
        define( 'WP_AUTO_UPDATE_CORE', false );
        // Disable Theme/Plugin Update
        add_filter( 'auto_update_plugin', '__return_false' );
        add_filter( 'auto_update_theme', '__return_false' );

        // Disable Theme/Plugin Editor
        define( 'DISALLOW_FILE_MODS', true );
        define( 'DISALLOW_FILE_EDIT', true );

        add_action( 'admin_menu', 'foxtail_remove_menus' );

        // Remove
        add_action( 'admin_menu', 'foxtail_remove_unnecessary_wordpress_menus', 999 );
    }

    function foxtail_remove_menus() {

        remove_menu_page( 'index.php' );
        remove_menu_page( 'jetpack' );
        // remove_menu_page( 'edit.php' );
        remove_menu_page( 'upload.php' );
        // remove_menu_page( 'edit.php?post_type=page' );
        remove_menu_page( 'edit-comments.php' );
        remove_menu_page( 'customize.php' );
        remove_menu_page( 'plugins.php' );
        // remove_menu_page( 'users.php' );
        remove_menu_page( 'tools.php' );
        remove_menu_page( 'options-general.php' );
        remove_menu_page( 'vc-general' );
        remove_menu_page( 'about-ultimate' );
        remove_menu_page( 'ninja-forms' );
        remove_menu_page( 'loco-translate' );
        remove_menu_page( 'wppusher' );
        remove_menu_page( 'wp-fast-cache' );
        remove_menu_page( 'itsec' );
        remove_menu_page( 'about-ultimate' );
    }

    function foxtail_remove_unnecessary_wordpress_menus() {
        global $submenu;
        unset( $submenu['themes.php'][6] );
        unset( $submenu['themes.php'][20] );
        unset( $submenu['themes.php'][22] );
        remove_menu_page('edit.php?post_type=acf');
    }
}