Your company wants to manage their personnel using active directory, you want access to the office suite, you want to be able to play modern video games?

Instead of one machine running everything, you want me to run 3 different machines? It's technically possible to do better than that. One OS that run anything we want would be amazing.

This looked to be MacOS for a while, but then came the iPhone...

That is true, though I still think that macOS still is the closest to that and that is one of the reasons I keep using the Mac. Mac+VMWare is a pretty flexible setup. I wonder, if anyone has a project going to implement a wayland server for Metal2? On the other side, the WSL looks very promising, so Windows is becoming more and more interesting, if one is a Unix guy.

I‘ve switched from Mac to WSL. You‘re using a lot of integration with GUI layer and a lot of polish, especially keybinding, tabbing and nice fonts. But it‘s useable and being able to use Linux package managers instead of homebrew is a big plus. Also, Thinkpads are so much nicer than current MBP - best of breed keyboard, all the I/O you need, nice case, 1TB SSD, 24GB Ram, 2300 USD pricepoint, everything else good enough.

I think WSL would quickly become a killer if MS added a Wayland server integrated in the native Windows UI.

this is obviously the next step I think.

In the meantime, there are already solutions to running X in WSL that are almost single-click:

https://token2shell.com/x410/

https://whitewaterfoundry.com/WLinux/

The ability to run foreign software is a goal even Google embraces with their support for Android apps and 'Linux' within their Chrome OS sandboxes.

(If you're asking why Windows in the first place, well that is another discussion entirely.)