This is so old news its not even news anymore.
Yes, newer Intel is comped. This is why Q tells us to archive offline. They can always delete stuff.
Its based on MINIX
https://www.zdnet.com/article/minix-intels-hidden-in-chip-operating-system/
You can patch some versions.
https://hothardware.com/news/researchers-figured-out-how-to-turn-off-intel-management-engine-11-thanks-to-nsa