virtual host config file not redirecting http to https

Question

I have the problem of redirecting the http to https but all the information/tutorials and descriptions are not working. We are using Apache2 on a Debian machine and this is the conf file

<VirtualHost *:80>
        # The ServerName directive sets the request scheme, hostname and port that
        # the server uses to identify itself. This is used when creating
        # redirection URLs. In the context of virtual hosts, the ServerName
        # specifies what hostname must appear in the request's Host: header to
        # match this virtual host. For the default virtual host (this file) this
        # value is not decisive as it is used as a last resort host regardless.
        # However, you must set it for any further virtual host explicitly.
        #ServerName www.example.com

        ServerAdmin webmaster@localhost
        ServerName assets.xxx.it
        ServerAlias assets.xxx.it
        DocumentRoot /var/www/assets/eit_resource_manager_frontend/build
        # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
        # error, crit, alert, emerg.
        # It is also possible to configure the loglevel for particular
        # modules, e.g.
        #LogLevel info ssl:warn

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

        # For most configuration files from conf-available/, which are
        # enabled or disabled at a global level, it is possible to
        # include a line for only one particular virtual host. For example the
        # following line enables the CGI configuration for this host only
        # after it has been globally disabled with "a2disconf".
        #Include conf-available/serve-cgi-bin.conf

        RedirectMatch ^(.*)$ https://assets.xxx.it$1   
</VirtualHost>
<VirtualHost *:443>
  ServerName assets.xxx.it
  ServerAlias assets.xxx.it

  Protocols h2 http/1.1
<Directory "/var/www/assets/eit_resource_manager_frontend/build">
RewriteEngine on
#Don't rewrite files or directories
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
#Rewrite everything else to index.html to allow html5 state links
RewriteRule ^ index.theml [L]
</Directory>
  

  # SSL Configuration

  # Other Apache Configuration

Include /etc/letsencrypt/options-ssl-apache.conf
SSLCertificateFile /etc/letsencrypt/live/assets.xxx.it/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/assets.xxx.it/privkey.pem
</VirtualHost>

After any change in the file I restart the server but the HTTP is not redirected to HTTPS. I have tried different implementation with same poor result. For further information, the login page is on assets.xxx.it/login and the redirect from "/" to "/login" is handled inside the app (via React Router)

Any suggestions?