Are you seriously trying to suggest that people don't?

I'm sorry to be the one to break it to you, but desktop apps are still very widely used by all sorts of people. This includes home users, business users, scientific users, software developers, academics, and so forth.

Even when it comes to web browsing, traffic from non-desktop devices is generally only around 10% to 15% of a site's total traffic these days, for sites that aren't specifically targeting mobile users. The remaining 85% (or more) of traffic is coming from people who are, guess what, using web browsers implemented as desktop apps.