Windows has had TPM 2.0 since 2016, and remote attestation can be accomplished with the TPM only without Pluton being necessary. However, Pluton has its own issues and appears to make implementing attestations easier, by supporting different attestation protocols - and by potentially receiving new updates for that functionality later on. Pluton is also significantly stronger against attacks which have occurred on TPMs previously.

https://www.bleepingcomputer.com/forums/t/613941/tpm-20-is-m...