Do you need this CNAME?

I added the domain and CF defined 2 A records and 1 CNAME record - this is one of the two CNAME records that are added to the hosting panel to get Let’s Encrypt.

Do you need it?

If so, why only one CNAME?

Do you need to add the second one?

My rule of thumb is that the DNS records here should be a perfect match with the DNS records at your host. If Cloudflare doesn’t guess all your DNS records, you need to manually add any missing ones, including that second CNAME record.