Just another observation. In my experience Windows users tend to be "Single boxed" users. They debate on whether to install Windows 7 or Windows 10/11.
Linux aficionados tend to be multi-box, and/or dual boot.
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As I read this, I was initially nodding. But after some thought, I don't think I agree completely with who the single-box people are.
In my experience, most technical people are multi-OS as you describe. I am for sure, I have hundreds of OSes running in my house, from a Proxmox server with the majority of the VMs, Kubernetes, Linux containers, Windows XP, 7, 10, and 11, to 2 Lab Windows 10 and 11 computers for my EE hobby. I have a Raspberry Pi for GPIB, one on my 3D printer, and 4 laptops, 2 running Windows and 2 running macOS. A dedicated DVR host, a Linux box running a firewall, and one running Home Assistant. And then the macOS daily driver that is my corp laptop. Those are just the ones I can think of right away.
People who treat their PCs as appliances are more likely to use macOS or Windows, and that's it. Linux desktop users will be hobbyists for sure. I think it will be rare to find Linux as the base OS on corporate desktops. It isn't compatible with MDM and so many other fleet management systems. Corporate IT/InfoSec would not allow it. I'm sure someone will say they use Linux at work, and that's fine, here's your corner case.
So, I'd refine a bit. The vast majority of people in the world see a computer as an appliance, and those are very much Windows and macOS.
There are going to be a few Linux users who somehow got there and still use the computer as an appliance. They could still be single-box users, but will lean in as hobbyists and likely have more diversity, as you mentioned. Then there's the larger group of hobbyists and professionals who use Windows, macOS, and Linux daily and have tons of diverse OSs everywhere.
I don't know, after writing the wall of text, I still may land with your generalization being best.
