Modern TPM support in Linux and systemD now permits automatic disk unlock for LUKS encrypted volumes using a key stored in the TPM - some ~15 years after Windows could do it.
I wonder what the TPM support is like in the HURD - ha!
The only complaint I have about the TPM is there is no standardisation in connectors, pinout, or bus type when it's not soldered onto the board. I have three motherboards with plug-in TPMs and each required a different, unique part that was difficult to source.