When I look at my .conf files in /etc/apache2/sites-available I have:

000-default.conf
000-default-le-ssl.conf

Q1. does apache create both files?

Q2. do I need 000-default-le-ssl.conf if I currently don’t have any certificates?

000-default.conf
================
<VirtualHost *:80>
        ServerAdmin admin@mydomain.com
        DocumentRoot /var/www/html

        <Directory /var/www/html/>
            Options Indexes FollowSymLinks
            AllowOverride All
            Require all granted
        </Directory>

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined

        <IfModule mod_dir.c>
            DirectoryIndex index.php index.pl index.cgi index.html index.xhtml index.htm
        </IfModule>

RewriteEngine on
RewriteCond %{SERVER_NAME} =www.mydomain [OR]
RewriteCond %{SERVER_NAME} =mydomain.com
RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]
</VirtualHost>


000-default-le-ssl.conf
=======================
<IfModule mod_ssl.c>
<VirtualHost *:443>
        ServerAdmin admin@mydomain.com
        DocumentRoot /var/www/html

        <Directory /var/www/html/>
            Options Indexes FollowSymLinks
            AllowOverride All
            Require all granted
        </Directory>

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined

        <IfModule mod_dir.c>
            DirectoryIndex index.php index.pl index.cgi index.html index.xhtml index.htm
        </IfModule>


ServerName mydomain.com
Include /etc/letsencrypt/options-ssl-apache.conf
ServerAlias www.mydomain.com
SSLCertificateFile /etc/letsencrypt/live/mydomain.com/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/mydomain.com/privkey.pem
</VirtualHost>
</IfModule>