KernelSU is pretty interesting in certain circumstances compared to say, Magisk, which is a systemless root. KernelSU cannot be prevented by SELinux—the kernel can even disable SELinux if it wants to.

It's quite useful for gaining root on "weird" and or/old android devices such as lesser-known smartwatches, often that have no support for Magisk at all.

In terms of bypassing SafetyNet, both KernelSU and Magisk have their own strengths and limitations. For those utilizing an Android smartphone in a conventional manner, Magisk may be the preferred choice due to its extensive module support and strong community support.