You’re not really changing anything, you’re adding functionalities. Also, it appears that apple has limited their capabilities and doesn’t even recommend them anymore, so it wouldn’t be crazy if they just deprecated them in favor of system extensions, which sadly they don’t call sexts. On the surface, kexts appear to be basically userland ioctls, which you have on windows too.
You’re not really changing anything, you’re adding functionalities. Also, it appears that apple has limited their capabilities and doesn’t even recommend them anymore, so it wouldn’t be crazy if they just deprecated them in favor of system extensions, which sadly they don’t call sexts. On the surface, kexts appear to be basically userland ioctls, which you have on windows too.