Essential Arch Linux Package Management Commands
Search for a package with pacman
sudo pacman -Ss query
Search for package with yay
yay -Ss query
Install community package via pacman + update
sudo pacman -Syu package
Install aur/community package
yay package
Remove aur/community package + unnesessary dependencies
yay -Rns package
Or
pacman -Rs package
Update whole system
pacman -Syu
Or
yay
Update after changing mirrors
pacman -Syyu