Anyone who actually understands technology knows that regardless of how many different apps or environments apple OS’s provide, you are always operating in a closed system with the tools they allow. Whereas an operating system like android, or Linux, or (at least for now) windows, your options for the capability of a tool are limited only by what exists or what you have the capability to write.
With desktop MacOS it's the same as with Windows for now.
In short, apple isn’t an OS that technologically literate people flock to as an exclusive option.