The forward is working just fine on a desktop, however when I try the forwarded domain on mobile, the site breaks, there’s no styling and content is missing.
After some more investigating it looks like the issue here is with the current DNS setup. Because you have SSL enabled, you should have the following DNS records:
It looks like you are using Cloudflare so you will need to set up your DNS records and then ensure each record is set it to DNS only in Cloudflare (Disable the orange cloud).
Once these changes have been made your site should appear as expected. If you have questions please feel free to reach back out here or via email at support@webflow.com