That's the thing I don't ever see Linus approving a merged request to add a kernel level anti-cheat (rootkit) into the Linux kernel. So they will have to come up with another way. Also at this point kernel level anti-cheat doesn't even work anymore. It's like the TSA its their to make people (investors) feel safe but really does very little to stop the thing it's meant to and Inconvenience and annoy legit customers. Just like with DRM and pirates.