I don't think they are anymore. The vast majority of ordinary person computer/internet use has already moved to smartphones, tablets, smart TVs and other such devices. It seems nowadays many people don't even know the basics about how to use a desktop operating system.

I find this hard to believe considering how bad the UIs are on phones and TVs. Even google.com does not offer feature parity between their desktop and mobile websites.

My phone still didn't come with a functional paint or notepad apps. Google docs is a horrible experience on phones (but at least it works now - a few years ago it was straight up unusable).

And you're telling me that this is the only computing platform for a lot of people? How is everything still so unusable about it then?

My experience tells me that everything mobile is basically an afterthought outside of a few dozen websites and I guess phone games.

Right. Laptops are basically work (or school) tools now for a lot of people. They might have one tucked away that they pull out now and then when they need it, similar to a power drill or a sewing machine. It’s not a daily use device.

I think it helped Microsoft historically that people used their operating systems at home, although even then a lot of people would have learned Windows at work or school first.