Like windows, Apple mac OS and Android.
The difference is that Linux system is open source and free, mainly used on the server side. Which is the company's server.
The above are generally used to run services, such as web services, DNS services, game services, etc. These service programs can provide services for users, such as the games you play, and most servers run on the Linux platform.
Linux is very interesting. You can spend some time studying it. Classic learning tutorials include Bird Private Cuisine, Kyle Linux and so on. I hope it helps you.