Massive Linux lore dumps going on, and I love it.
Thanks for correcting me.

Yeh, I think it’s actually “switch user do”.
Like “su” is “switch user”.

The default being root is handy.

For someone that isn’t a programmer that is wanting to understand what a script is doing… “Just read the commands” isn’t going to work.

It’s like speaking English and being given an instruction manual in French and being expected to understand how a machine is working. You will recognise some borrowed words, but you aren’t going to understand it.
“Just read the french manual” or “just learn french” aren’t going to work for a consumer wanting to get the machine to work.

Paste it into ChatGPT and ask it to explain what’s happening.
And look for anything that you don’t like

Maybe 3 of the 4 wheels need tightening?
So it’s a loose-loose-loose-tight situation when it should be a tight-tight-tight-tight situation