Linux is a secure operating system, windows is not. Making kernel level anti-cheat for Linux is difficult, and should be functionally impossible; as kernel level anticheat is absolutely no different than malware in its attack vector on the kernel. This means, for lazy dev teams, they can't implement the laziest possible method of anticheat, which they get upset about since they have lost all ability to actually have anti-cheat teams.

Linux makes a kernel-mode anti-cheat (that is, an application able to have above-administrator permissions and supervise all the device's actions) more difficult to implement than on Windows.