I think you're getting the concept of "interoperability" confused with things that work exactly alike. Things can be interoperable without having the same interface. In fact, they should be different. That's called "choice." All of the distros you mentioned may have different interfaces, but they "interoperate" great!
I think you're getting the concept of "interoperability" confused with things that work exactly alike. Things can be interoperable without having the same interface. In fact, they should be different. That's called "choice." All of the distros you mentioned may have different interfaces, but they "interoperate" great!