In an operating system, the filesystems are responsible for organizing and storing files and directories. They provide a way to access and manage the data stored on the storage devices. Such storage devices can be hard drives, SSDs, USB drives, magnetic tapes, optical discs, RAM disks, etc. They can be shared over the network and they can be even virtual (like procfs or sysfs).

a.k.a don’t fear the terminal

As a (mainly) web developer, I develop software that is mostly running on Linux - whether it’s a virtual machine in the cloud, a docker container, or my NAS under the staircase. So - for me - using any other operating system for development would be an extra hindrance.

To be honest, I like the customisability and freedom that only a Linux distribution can provide, I’m on Linux for more than 20 years, and happy with it. But if you are new, I try to give you a quick overview, why the terminal could be a useful tool.