great, thanks for you help @Dubz , so to sum up my understanding, the certificates I can configure with an enterprise/business account are the ones that will be used in between cloudflare and the client connecting to it. Can you please confirm whether custom certificates are hybrid and what type of signature algorithm (ML-DSA)?
I wouldn't know. I'd suggest having a read over the second link and it might better answer, or wait for someone who does know to chime in here. AFAIK it's not a huge topic of discussion, but I would be interested in learning more about these types of certs.