As far as I know, the URL in the .env file is mostly used internally for WordPress URLs, so it won’t affect server configuration. Bedrock is a tool for managing WordPress and its dependencies, it’s not really a tool for server configuration, which is what forcing HTTPS would be. Several of these results look promising: https://www.google.com/search?q=force+https+apache
If you’re using cPanel AutoSSL or the Let’s Encrypt webroot method it will fail to validate the certificate if validation requests are redirected to HTTPS.