"TPM" =/= Secure Enclave =/= Titan M2

You could argue TPM can work as a generic term for security coprocessors, but on a technical forum that makes as much sense as saying the pixel tablet is an "iPad".

To be fair, I was using TPM a little genetically (hence the "etc"). I (perhaps wrongly) assume most SoC's today have a non-volatile area for storing roots of trust and possibly a bootloader. My only embedded experience was an Android-based tablet project where DRM on the firmware was of major import because features were locked behind time/geo-limited license keys.