Hi,
The automatic opening of the index.php file if no other file is specified in the url is a feature of virtually all sites managed by Apache, whether local or on the Internet.
If you type in 'https://www.wampserver.com/' or 'https://wampserver.aviatechno.net/' or 'https://www.apachelounge.com/', a page opens, but you haven't added anything to the url, and this page is the one generated by
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WampServer English