🐧 LINUX — Most of the web's servers, every supercomputer on the TOP500 list, and the kernel inside Android. Price: zero. Ads: none. Telemetry: none. Nobody ever marketed it, and it still carries most of the infrastructure.

🍎 macOS — There is a real Unix underneath. You open the terminal and it works. Close the lid and it sleeps, open it and it wakes in a second. It has a competitor that could not manage those two sentences in 30 years.

🪟 WINDOWS — The only operating system that puts ads in your Start menu, sends a search of your own disk to Bing, and restarts itself in the middle of your presentation. And it charges you for it. That takes a certain kind of courage.