This basic tutorial explains the steps to installing a Linux distro (Ubuntu is recommended as it is easy) in detail, and plain language. Read it several times, until you feel comfortable. Ubuntu is the distro I started with, as drivers are easy to deal with and can be installed during the installation process without fuss (unlike some distros, side-eyes Fedora with slanderous intent).

One detail, Balena Etcher is the application this author refers to when mentioning "Etcher" Installing Ubuntu