In the wake of Crowdstrike, Microsoft was going to allow for additional avenues for hooks into the OS that don’t reach as deep into the kernel level, but they never said they were removing the hooks that Crowdstrike or anti-cheat use, as far as I can tell. One solution for PC handhelds is to run whatever modified version of Windows that Microsoft is cooking up, so that you get the console-like interface without compromising on the anti-cheat compatibility. The solution Valve is seemingly hoping for is that, by disclosing kernel-level anti-cheat on the store page, such a solution becomes poison in the marketplace and developers choose a different one.