How do you handle multiple subdomains with CloudFlare?

I use CloudFlare and I have tried to set multiple CNAMEs so I can point multiple apps to the same domain name.

E.g. +

Apparently, this is not possible just by adding multiple CNAME on CloudFlare.

Do you guys have similar issues? How did you sort this out?

Thank you

Move to Google domains, subdomains management is really easy and straightforward. Within a few minutes your apps are available with your subdomains.

Thanks Christophe, I will need to give up on Cloudflare Security though.