The question is whether other OSs would require it to have kernel mode privileges. People run complicated stuff in kernel mode for performance, because the switch to/from userspace is expensive.

Guess what’s also expensive? A global outage is expensive. Much more than taking the performance hit a better, more isolated, design would avoid.

What are the tasks in question?

This is true. Linux large fleet management is still missing some features large enterprises demand. Do they need all those features, idk, but they demand them if they're switching from Windows.

From a comment above, Linux has features (ebpf) that key crowdstrike stay out of the kernel.

The old "everyone else is just as bad" adage is bullshit. Some OSs are better suited than others.