Yes Intel SGX gives you the enclave measurement which you could reproduce (if source code code is reproducible), the measurement can be verified against Intel keys to prove it came from that hardware. Similarly AMD SEV-SNP gives you that, it is preferred to SGX due to the ability to run VMs as opposed to smaller applications.

AWS has their firmware image in OSS to be able to reproduce it and then compare the measurements in their Nitro instances: https://github.com/aws/uefi

Azure has confidential compute offerings as well, their attestation, mhsm, ledger services rely on it.

But it is easy to talk about confidential compute and the link between the measurement and the source code. Such link does not exist in regular non-encrypted services and you basically need to trust the service provider about the proofs they give you.