Virtual desktops in Unix predate Visual Studio. I'm pretty sure there was a concept of tabbed interfaces somewhere in the Amiga or BeOS or any other OS.

https://en.wikipedia.org/wiki/Tab_(interface)

Don Hopkins himself can enlighten us about it (NeWS) better than me literally anyone in this thread, jut wait.

What does that have to do with my criticism of the two most popular operating system that they failed to innovate or adapt in areas that showed obvious need?