Why do you need file downloads tracking in Google Analytics?

It is often necessary to track which files download the site visitor. This is especially useful if there are a large number of different files on the site and it is necessary to prepare a statistical report. You have the opportunity to track with Google Analytics downloads by users of various files or other documents on your site. You can see more detailed here https://triodox.com/blog/file-downloads-tracking-in-google-analytics-4-and-universal-analytics/ . Who else has no GTM strongly recommend installing it.