[raxxorrax]

No it is not, but I am fairly sure that is one of the main use cases. And you have a uniquely identifiable machine which creates new security problems.

We also know from smartphones that manufacturers can indeed be motivated to lock bootloaders. I think the main reason we don't have that on PC is that there are still multiple manufacturers and legacy considerations.

Aside from that it remains true:

https://ieeexplore.ieee.org/document/5283799

I cannot read the minds of Microsoft, but I have my assumptions that I believe are quite safe.

https://trustedcomputinggroup.org/ has rebranded themselves because they got a bad name. Justified in my opinion. People have identified the motivation on day one.

But again, yes, it can have some security advantages against the numerous disadvantages. I think it is bad for open computing overall. There are certainly mechanisms to secure your OS that don't rely on TPM. It may benefit you, but I would actually like to see it removed from my machine with all the consequences (which would be not being able to play DRM protected media).