Not many, but plenty use various corporate applications that are Windows-only.

It’s some kind of locked-down version of GlobalProtect that’s integrated with a TPM module to prevent machines that aren’t running our corporate image on corporate-approved laptops from being able to connect.

There’s probably some kind of workaround, but I’m lazy and it’s easier just to power up the Windows machine now and then.

I only ever use Windows on my work computer, and only when I need access to a resource that requires our Windows-only VPN.

But seriously, “just use linux” is worthless advice. Lots of people use Windows for specific applications that don’t exist in the Linux ecosystem. For example, there are no Linux applications that come close to AutoCAD, and it simply doesn’t work on Linux.

Better advice would be to get new (or newer used) hardware if possible, if you absolutely need to use Windows, since this workaround will inevitably be “corrected” by Microsoft. Then you can do whatever you like with the old hardware, such as install and learn Linux at your own pace.