Hardware brands which you trust to run Qubes

Actually, no, there is no way to know if your system is (not) compromised. See also: Compromise recovery in Qubes OS | Qubes OS.

Every defeatist person would say that :wink:

However, I agree that

And this is why I am simply trying to make “their” work harder, nothing more.

Through the speculative CPU vulnerabilities, they could get any password of yours via javascript on random websites. Through Intel ME they (maybe) could own your system, too.

However, this is an off-topic here and we should not continue this discussion in this thread.