Sometimes your package manager asks you for root password every minute while doing few hours long update and cancelling process if you don't enter anything for few minutes, "yay" aur manager looking at you, and you got to do other things than sit and look in the monitor all day long, things like cleaning house or touching grass for example
As a one time noob I may have done this once or more.
To get one thing working I borked everything.
Understanding permissions is pretty basic. But understanding permission requirements for system and user apps and their config and dirs can be a bit overwhelming at first.
Thinking a little change to make your life simpler will break something else doesn't always register immediately.
Shit, even recently, wondering why my SSH keys were being refused and realising that somehow i set my private keys world readable.