Here comes my teacher again as usual.
So, I will edit and keep only pacman -Sc as it looks simple and “cute”
A few days ago, as I did “yay” to update I got lots of 404.
Anyway this command "clean " won’t be run daily… weekly or monthly perhaps.
The “Syyu” is on official Arch page, plus I saw it here a few times.
I believe I got it from somewhere here on the forums. (at my main reference at A Complete Idiot's Guide To Endeavour OS Maintenance / Update / Upgrade (first post, point 6). I understand it helps cleaning uninstalled/orphaned packages (should I remove it?)
My ignorance comes again here.
So, I am not sure what to put to rank Arch mirrors?
Well, some of them required root password, so I was trying to pass it once only.
I will modify the copy.sh accordingly later!
I really thank you for always being there to support, teach and help.