No comma for email addresses

When trying to type an email address manually in the To/Cc/Bcc fields, there is no option to add a comma on the keyboard. Even rotating the phone for the wider keyboard does not have a comma. This is on the iPhone XR with the latest OS 12.4. Seriously though, how can you not have a comma here? I know that if you hit the plus sign and then select cancel it will add a comma but that is highly inefficient.