The two things you can do in the shell you mostly can’t do elsewhere is compose arbitrary commands and store custom commands.

For #1 this blog post has some good examples of quickly chaining together commands (though personally I rarely use xargs) https://drewdevault.com/2020/12/12/Shell-literacy.html

For #2 once you’ve got a command you like, maybe one that generates a metric, you can now re-run it with ease from your history, saved text file, or an alias. You could also share it with teammates.

Please correct me if there are other ways to achieve the above, shell is the only way I know