@nyx 0. Linux isn't even a operating system, it's a kernel.
1. Linux is proprietary software, so it doesn't even qualify for "open source" (by the "Open Source Definition").

@lanodan >GNU stuff like glibc and gcc? Literally vendor-locking due to undocumented extensions
What are you on about?
There is no lock-in, as the everyone is free to run, copy and share the software implementing such extensions.

The extensions are documented as well.

You seem to be confusing freedom from proprietary software as lock-in.