Can wordpress home page be web site index.html?

If your press is installed in your web-root folder, just delete the index.html file.

I deleted the index.html file. However, that caused a list of everything in my public_html folder to be displayed. One of those items was the wordpress folder. I then downloaded the index.php file from the wordpress folder and uploaded it into the public html folder. This did not work. I renamed the index.php file to index.html. That did not work. Finally, I uploaded the orginal index.html fiLe.

WordPress was already installed on my site when I signed up for web hosting. Currently, I access my wordpress page by typing

https://www.sitename/wordpress

What exactly do I have to do to install wordpress in my web-root folder?

Is there anyway that I could someway get the index.php file to work in the public_html folder?

To make WordPress available at https://mydomain.com in Settings->General, change the Site address (URL) to https://mydomain.com and put this index.php file in your web-root folder (public_html)

<?php
/* Short and sweet */
define('WP_USE_THEMES', true);
require('./wordpress/wp-blog-header.php');
?>

Then update your permalinks by visiting Administration > Settings > Permalinks and clicking on Save Changes.