Hide my email not forwarding verification code

Please check the actual email ID.

However, Hide My email uses your Actual email ID only but the difference is that the Actual email ID will be invisible to the App server and will be masked with an iCloud email ID created just for you and for the App. When they respond to this Masked email ID the email will come to your Actual email Inbox.

There is no separate email Inbox for Hide My email allocated to you.

Please refer to the pic below which is self-explanatory