>It causes many stability issues, as to my experience

In my experience it very much does not, ram instability with this feature indicates a hardware issue same as with ECC.

>Mr.Nobody, generally, should not worry about expensive cryogenic attacks - three letter guys would extract your key with a wrench.

This is disingenuous framing. There exist valid threat models for average people between thieves and three letter agencies. Police forces and organized crime have been known to use ram freezing, the former is not known for wrench attacks. That scenario is only good for hand waving real concerns anyways.

Well, I've experimented with this feature on several platforms (both ECC and non-ECC) starting with TRX40, most of the times I've been just getting hard freezes at GPU driver initialization. If it boots - it usually hangs when a VFIO VM spins up.