[WirelessGigabit]

Modern systems don't have a dedicated TPM, so it's a lot harder to read the settings off the chip, as it is part of the CPU.

Then I believe modern TPM communication is encrypted.

On too of that you want your laptop to support physical tampering resistance, which prevents both this (outdated) chip attack and freezing the RAM. When you then boot the laptop the master password is required. I would prefer it to throw off the PCR but hey, it works too.

I do wonder if you have 8GB of soldered RAM and 8GB on a stick, Windows keeps the key in the soldered part to increase difficulty stealing?