The problem is that for most users, when their setup is completed they won’t need to play with it for a while so after that any time they need to install something new through the terminal it means losing time to find instructions again.

Nothing is learned, to the eyes of a casual users it’s just meaningless entries getting copy/pasted and it’s information getting repeated again and again and again just with slightly different entries for each program. Meanwhile “how to install a program on Windows” would basically require one page on the whole internet to cover 99% of situations: “Download the install file, double click it, follow the on screen instructions to automatically install the program”.