Linux servers are usually configured with the Apache server and can run one of the several distributions that exist for this operating system. In the case of web servers, among the most popular distributions are CentOS, Debian, Red Hat, Ubuntu and many others. This diversity of distributions is due to the fact that the Linux source code is free and an open source.
It is also important to clarify that the operating system of the chosen hosting server has no relation to the operating system of the computers we use at home. You can, for example, choose a Linux server even if you have used a Windows or Mac OS computer to build your site. What will weigh when choosing the right platform are other details.
For example, if your website will be built with the PHP programming language, then the Linux Hosting is recommended. Although Windows servers also run PHP, this is a language native to Linux servers.