Just look how it is to install software on Windows.
You need to open the menu and type the browser name(/click on a shortcut), open the browser, search for your software, check you're clicking on the right site and not some scam website, [sometimes you need to go few pages until you end up in the downloading page], clicking on the download button, and.. if the download completed successfully.. there's still more..!
If you don't want to go through the regular install, why not to just use
archinstallor EndeavourOS?