Let's figure out what "install" means and how it works. To install — in simple terms, to set something up, for example, a program on a computer or an app on a smartphone. When you install something, you are essentially preparing it for use.
Installation — is the process of setting up. This can be, for example, a program on a computer. This term can also be used in other areas of life. For instance, you can install a sliding door system or something similar (that is, set it up).