It’s the equivalent of a unique fingerprint for your computer. So if you post wrongthink on social media, it is easier to use digital forensics to trace it back to you. Say goodbye to anonymity on the internet.

PCMag describes it as follows, completely glossing over the privacy issues:

TPM 2.0 (Trusted Platform Module) is a hardware-based security feature, often a chip on a computer's motherboard, that enhances system security by securely storing cryptographic keys for features like Windows Hello and BitLocker encryption.