With rabbits, a common myth is that if you touch a baby rabbit the mother will no longer care for it. 9 times out of 10, the mother will return to care for the babies after they have been handled.
QNX is not a Linux distribution, normal or otherwise. QNX is POSIX compliant. That means that much of the programming interface and many of the utilities are the same. The underlying OS is very different in structure. There is little compatibility for drivers. With Linux the operating system functions as a very large monolithic piece of code.
Answer Wiki. QNX is a complete microkernel based realtime OS. Linux is a monolithic kernel. In practical terms, QNX is a well supported OS which runs on a variety of embedded platforms, such as the little computers in cars which have the satnav and music controls. QNX supplies a pretty rich application building framework which is nothing like the typical X11 or Wayland you get on Linux.