Problem accessing CI4 with XAMPP on Linux Mint

I’m having problem accessing CI4, when I try localhost/CI4/ it shows me only the files in the directory and then tried to access the “public” directory but it says that access is forbidden...Meanwhile when I use the spark serve command it works okay...Any idea please... Ps. Sorry english is not my native language so is not so good.usps tracking showbox speed test

Apache config example:

httpd-vhosts.conf
<VirtualHost *:80>
    DocumentRoot "/opt/lampp/htdocs/ci4example/public"
    ServerName ci4.domain.com
</VirtualHost>

app/Config/App.conf
public $baseURL = 'http://ci4.domain.com/';