You're already using it. You just don't know it.
Android, the worlds most-used mobile OS is built on the Linux kernel. Over 3 billion active Android devices run Linux every single day.
Around 96% of the world's web servers run Linux. Every time you visit Google, YouTube, Facebook, or Netflix, you're talking to a Linux machine.
The International Space Station switched to Linux in 2013. SpaceX runs Linux on rocket flight computers. Mars rovers have used Linux-based systems too.
100% of the world's top 500 supercomputers run Linux. Every single one. It's the only OS powerful and flexible enough for the job.
The Steam Deck Valve's handheld gaming device runs on Linux. Thousands of games run through Steam and their own hardware.
Major banks, stock exchanges, and governments run their critical infrastructure on Linux. Un-shakeable stability and security make it the only choice.
Linux isn't one thing it comes in versions called distributions, each one has a different purpose and audience.
The most beginner-friendly distro. Great for people switching from Windows or macOS for the first time.
Cutting edge features, backed by Red Hat. The go to for developers who want the latest tech.
For advanced users who want full control. You build it yourself from scratch and choose what you want, with no restrictions.
Built for the tiny Raspberry Pi computer. Popular for small hobby projects.