I'll have to check. I know that my Asus Prime X470 Pro lists TPM as "sold separately"; there's a connector on the motherboard, but the module itself is likely not present.
From the manual[1], it is an option under section 3.6.1 AMD fTPM Configuration. It's built into the CPU rather than the motherboard, but the motherboard can provide a separate hardware TPM.
Ha I was in that PDF a few minutes ago. I saw "fTPM" but since it didn't list an explanation, I didn't know if it was an included TPM module or something else.
(For example: https://www.bhphotovideo.com/c/product/1237446-REG/asus_tpm_... )