Yes, that’s correct helpful article with all related information about such feature and instructions how to configure it.
Please, keep in mind, this feature doesn’t allow you to use [email protected] email address to sent out emails. You can only receive emails to [email protected] which then are forwarded to your desired destination email address such as [email protected].
Email routing feature is only for e-mail forwarding to your inbox (like private Gmail) in case you do not have any e-mail service configured for your domain name (like [email protected]).
Unfortunately, it’s not mentioned to work as a SMTP server and cannot be used for sending e-mails.
If you’d like to sent emails as well in the name of [email protected], then you’d have to find an dedicated email service provider such as NameCheap is offering at below link and pay for it:
Nevertheless, small simple steps regarding setup are needed in such case related to the DNS records to make it work with your domain name while using Cloudflare (NameCheap as an example here)