Likely and I’m skeptical of their (amd/intels) management software running directly on our processors too, though unfortunately there is nothing we can do about that until we can use open source chips like RISC-V (which wont be any time soon).

Do you know if anyone has ever been able to verify the backdoor exists and is taking our info/spying for definite? Ie has seen a packet with suspicious origin/destination with data that wasn’t manually sent anywhere leaving their network?

tl;dr we can’t do anything about amd/intel management backends possibly spying, but we can do something about microsoft very opening spying on us (alternatives exist).