It's interesting to consider the kind of user who's still running Windows 7 in 2020.
There are a couple of options, but I'm guessing the majority are non-technically savvy people who bought a PC (probably a laptop) years ago and don't use it for much more than writing the occasional word doc. I'm guessing many of them have probably bought some kind of tablet and/or smartphone and that is their primary browsing device.
In other words, most of them don't really need a full desktop OS, and almost certainly aren't going to upgrade to Linux (the majority won't even know what that is).
It's not Win 7, but my father just last week downgraded his Win 10 computer to Win 8 because he - a retired engineer - is convinced that "tried and tested" means that an old OS is a more solid and reliable OS than a newer one.
I'm one of them. (Well, hopefully not for long.) Home PC is for gaming and for that it has been quite adequate. Why upgrade when you arguably get downgrade?
Yes, work is on different environment.
Why win7? I was under the impression that linux is the industry standard for these kind of things. A minimal/server install would probably have a much lower overhead than win7 too, although I guess most bottlenecks will be in the drivers anyway.
There are a couple of options, but I'm guessing the majority are non-technically savvy people who bought a PC (probably a laptop) years ago and don't use it for much more than writing the occasional word doc. I'm guessing many of them have probably bought some kind of tablet and/or smartphone and that is their primary browsing device.
In other words, most of them don't really need a full desktop OS, and almost certainly aren't going to upgrade to Linux (the majority won't even know what that is).