[aa-jv]

Linux is not in any way, a retro OS.

[LeFantome]

The implication is clearly that the core design dates back to UNIX in the 70’s.

[aa-jv]

But many aspects of its core design are also 21st-Century concepts, developed anew in a fresh era, and are still very much widely deployed and in active full development.

Therefore, Linux is not retro.