Thank you, Kim, for the prompt response. I changed the setting to load on back-end only, but it still shows loading on page source.
<link rel="stylesheet" id="wpda_wpdp_public-css" href="https://geekflare.com/wp-content/plugins/wp-data-access/public/../assets/css/wpda_public.css?ver=5.4.0" media="all" />
<script id="wpda_rest_api-js-extra">
var wpdaApiSettings = {"path":"wpda"};
</script>
<script src="https://geekflare.com/wp-content/plugins/wp-data-access/public/../assets/js/wpda_rest_api.js?ver=5.4.0" id="wpda_rest_api-js"></script>