The number in the folder name is not related to the PHP version of the website. That's fine and exactly as it should be. The number 8.2 here is not a PHP version, its simply the default folder for all PHP sockets of all PHP versions. Do not look into a website vhost file if you want to know which PHP version a site uses, this info is not in that file. If you want to change the PHP version of the website, select the PHP version in website settings and press save. There will be no change in the vhost file for that, as this is not configured in the vhost.
