Can we say that CA produces the hash of TBSCertificate and then encrypt it instead of signing it? [duplicate]

CA signs the TBSCertificate, this is a pretty known fact.

Signing m means producing the hash value of m then encrypting m. For example:

Does this apply to signing certificates?

Here the answerer says:

The most important is that both your encrypt boxes are wrong, they should say sign.