You leave work for a short lunch break. You don’t have time to sit and eat at a fast food restaurant or cafe, so you use the app for of one of those establishments to place an order that will be ready for you when you arrive.
It is highly likely that you interacted with a server running a Linux operating system when you placed the order. These flexible operating systems are widely used on servers, smart devices, and many other computers that people use every day. They typically use them without knowing the operating system.
However, if you had more time to spend in a restaurant and observe people sitting in it and working on their laptops, one thing that would be rare to find is one of those computers running a Linux distro and the person editing a document in LibreOffice. This would be a rare sight at any restaurant, office, or even home around the world.
Linux distros run on about 2 percent of the desktop computers worldwide. Microsoft continues to dominate the work world with its operating systems and office suite.