Still pointless when the key can be sniffed in cleartext by intercepting the communication between the TPM and the CPU [1]. You should always combine it with something only known to the user (i.e. a passphrase).
The only attack TPM-backed disk encryption prevents is someone imaging the disk.
The only attack TPM-backed disk encryption prevents is someone imaging the disk.
[1] https://blog.scrt.ch/2021/11/15/tpm-sniffing/